During the seventh century, the Catholic Church in Visigothic Spain became increasingly involved in the political and judicial affairs of the kingdom. Ecclesiastical councils were responsible not only for establishing religious doctrine and regulating the clergy but also for investigating accusations against bishops and determining whether they should remain in office. One of the most controversial examples of this authority emerged at the Third Council of Seville, where Bishop Martianus of Écija was removed from his position following accusations of misconduct, political disloyalty, and inappropriate relationships with women enslaved by the Church.
The council, presided over by Isidore of Seville, resulted in Martianus’s deposition and his replacement by Aventius, a rival who would later be implicated in organizing the accusations against him. What initially appeared to be a disciplinary proceeding developed into a prolonged ecclesiastical dispute that continued through the Fourth Council of Toledo in 633 and was not fully resolved until January 638. By that time, an investigation had uncovered evidence of manipulated testimony, organized opposition, and irregularities in the original proceedings.
Unlike many other important councils of Visigothic Spain, the original acts of the Third Council of Seville have not survived. Much of its history must therefore be reconstructed from later ecclesiastical records, particularly the Iudicium inter Marcianum et Habentium episcopos, a judgment issued on January 9, 638. This document preserves an unusually detailed account of the original accusations, the efforts to overturn Martianus’s conviction, and the eventual reversal of the council’s decision.
Isidore of Seville and the Visigothic Church
The Third Council of Seville occurred during a period of substantial change within the Visigothic kingdom. Following King Reccared’s conversion to Catholic Christianity and the Third Council of Toledo in 589, the Catholic Church acquired an increasingly influential role in the religious and political administration of Spain. Provincial and general councils became essential institutions through which bishops established ecclesiastical policies, addressed disagreements, and maintained discipline among the clergy.
Isidore of Seville emerged as one of the most influential figures in this developing system. Having succeeded his brother Leander as metropolitan bishop of Seville, he exercised ecclesiastical authority over the province of Baetica, which included the important bishopric of Écija. Although Isidore is remembered primarily for his theological writings and the Etymologiae, his responsibilities as metropolitan bishop also required him to supervise provincial councils and participate in disputes involving other members of the episcopate.
His influence was already apparent at the Second Council of Seville in 619, which addressed several matters involving ecclesiastical jurisdiction and religious discipline. Among the proceedings was a disagreement between the bishops of Écija and Córdoba concerning authority over a particular church. The assembled bishops established procedures for resolving the competing claims, demonstrating how provincial councils could serve as judicial institutions when disagreements arose between ecclesiastical authorities.
The bishop of Écija at the time was Fulgentius, another of Isidore’s brothers, whose participation in the council illustrates the close relationship between the two bishoprics. Following Fulgentius’s death, Martianus eventually succeeded him as bishop of Écija, although the precise circumstances and date of his appointment remain uncertain.
Martianus consequently entered an ecclesiastical environment in which the authority of the metropolitan bishop and the decisions of provincial councils could significantly affect the careers of individual bishops. His eventual conflict with Aventius would demonstrate how accusations brought before these institutions could result in the removal of a bishop and a prolonged struggle over control of his diocese.
The Date of the Third Council of Seville
Establishing the precise date of the Third Council of Seville has presented a considerable challenge to historians because its original proceedings have disappeared. Earlier scholarship generally placed the council between approximately 622 and 624, during the reign of King Suinthila, but more recent investigations have suggested that it may have occurred several years later, around 628 or 629.
One important piece of evidence comes from the correspondence of Braulio of Zaragoza, who wrote to Isidore requesting the proceedings of a synod in which an individual named Sintharius had been examined. Braulio wanted Isidore to arrange for the king to send him the documents, apparently because they were relevant to an ecclesiastical investigation in which he was involved.
Some historians have associated this request with the missing Third Council of Seville, although the letter does not explicitly identify the gathering or mention Martianus. Its usefulness in establishing the date of the council therefore depends upon whether the synod referenced by Braulio can be identified with the proceedings that resulted in Martianus’s deposition.
José Carlos Martín-Iglesias reconsidered the chronology in a study published in 2018, drawing upon the surviving judgment of 638, the correspondence of Braulio, and the episcopal signatures recorded at the Fourth Council of Toledo. His reconstruction suggests that the Third Council of Seville probably occurred around 628 or 629, a dating that places the controversy toward the end of Suinthila’s reign.
Although the precise year remains disputed, the surviving evidence establishes that the council was presided over by Isidore of Seville and resulted in the deposition of Martianus. His removal allowed Aventius to assume control of the bishopric of Écija, setting in motion a dispute that would occupy the Visigothic Church for several years.
The Accusations Against Bishop Martianus
The proceedings against Martianus began with a series of accusations concerning his personal conduct, religious responsibilities, and loyalty to the Visigothic monarchy. The most detailed surviving account appears in the judgment of 638, which reconsidered the original allegations and examined the circumstances under which witnesses had provided their testimony.
One of the principal charges concerned a diviner named Simplicia, whom Martianus was accused of consulting about his own future and the life of King Suinthila. Such an accusation was particularly serious because Christian ecclesiastical authorities condemned divination and regarded the consultation of supernatural practitioners as incompatible with the responsibilities of a bishop. The suggestion that Martianus had inquired about the lifespan of the reigning king introduced an additional political dimension, potentially exposing him to suspicions of disloyalty toward the monarchy.
Other allegations concerned statements that Martianus had supposedly made against Suinthila, although the surviving records do not establish the precise nature or circumstances of the remarks attributed to him. During the later investigation, the reliability of the testimony supporting these accusations became an important question.
Martianus was also accused of inappropriate relationships with two women enslaved by the Church of Écija. One of them, Astania, had reportedly entered the bishop’s private chamber on several occasions and was alleged to have served as his personal attendant. The accusation implied that she had maintained an improper sexual relationship with him, although the original testimony would eventually be challenged by other members of the clergy.
Another woman, Bonella, provided testimony concerning an alleged incident involving Martianus. The surviving description of her accusation is not entirely clear, but historians have interpreted it as another allegation of sexual misconduct. Her statements became a significant part of the original proceedings, despite later concerns about contradictions in her testimony and the circumstances under which it had been obtained.
Taken together, these allegations presented Martianus as a bishop who had violated ecclesiastical discipline and potentially compromised his political loyalty. They were sufficiently serious to prompt an investigation before the bishops of Baetica, but the subsequent proceedings would reveal substantial problems with the evidence used to secure his conviction.
Aventius and the Deposition of Martianus
The conflict between Martianus and Aventius became central to the proceedings of the Third Council of Seville. According to the later judgment, Aventius had organized opposition to Martianus before the council assembled, obtaining written agreements from individuals who promised to support him and provide testimony against the bishop.
Among those implicated was a deacon named Eulalius, who eventually acknowledged his participation in the conspiracy. Another cleric, Timotheus, assisted in gathering accusations and securing statements from witnesses, while additional members of the clergy were identified as participants in the agreements supporting Aventius.
The accusations against Martianus were initially presented in Écija before being brought before the provincial council in Seville. There, Isidore presided over the assembled bishops as they examined the allegations and determined whether Martianus should remain in office.
The later judgment suggests that the original proceedings were not entirely unanimous. Some of the participating bishops reportedly believed Martianus to be innocent, while others accepted the accusations and considered his removal justified. Nevertheless, the council ultimately ordered his deposition and imposed restrictions that prevented him from immediately pursuing an appeal.
Following Martianus’s removal, Aventius became bishop of Écija, obtaining the position that had previously belonged to his rival. The significance of this appointment became clearer during the investigation of 638, when evidence emerged that agreements supporting Aventius had been prepared before the original accusations were formally examined.
Although Isidore presided over the council, the disappearance of its original proceedings makes it difficult to determine the precise extent of his personal involvement in the accusations or the deliberations that resulted in Martianus’s deposition. The surviving records establish that the judgment was issued under his metropolitan authority, but they do not demonstrate that he knowingly participated in the conspiracy subsequently attributed to Aventius.
The Fourth Council of Toledo and the Appeal of Martianus
Martianus continued to challenge his deposition after the Third Council of Seville, eventually obtaining an opportunity to present his case before a much larger ecclesiastical assembly. In 633, the Fourth Council of Toledo convened during the reign of King Sisenand, who had replaced Suinthila two years earlier. The gathering was presided over by Isidore of Seville and addressed numerous questions concerning ecclesiastical discipline, religious education, liturgical uniformity, and the relationship between the Church and the Visigothic monarchy.
Martianus brought his case before the assembled bishops in an attempt to overturn the decision that had deprived him of his episcopal position. His appeal placed the original judgment of the Third Council of Seville under renewed scrutiny, although the larger assembly did not undertake a complete investigation of the accusations against him.
The council ultimately agreed to restore Martianus’s episcopal dignity but declined to return the bishopric of Écija to him. Aventius consequently retained control of the diocese and participated in the proceedings as its bishop, with his signature appearing among those attached to the council’s acts.
According to the judgment issued five years later, the bishops at Toledo had been unable to examine the entire controversy because of insufficient time. Their decision therefore represented a partial reversal of the original condemnation rather than a complete resolution of the dispute. Martianus recovered his standing as a bishop within the Church, but the episcopal position from which he had been removed remained occupied by Aventius.
The settlement left both men in an unusual situation. Martianus had regained his episcopal rank without recovering the authority associated with his former diocese, while Aventius continued to govern Écija despite the unresolved accusations surrounding his appointment. The dispute remained unsettled following the Fourth Council of Toledo and would eventually require another ecclesiastical investigation.
The Sixth Council of Toledo and the Reopening of the Case
The controversy returned to Toledo in January 638, during the reign of King Chintila, who had succeeded Sisenand in 636. By this time, Isidore of Seville had died, leaving the final resolution of the conflict to a new generation of ecclesiastical leaders.
The Sixth Council of Toledo assembled in January 638, and the judgment concerning Martianus and Aventius was issued on January 9, the same date associated with the council. Although the judgment is closely connected with the gathering, it survives as a separately transmitted document rather than as an ordinary canon of the council.
Martianus once again requested that the original accusations against him be reconsidered, prompting the assembled bishops to reopen the investigation into the circumstances of his deposition. The proceedings involved five metropolitan bishops, including Eugenius of Toledo and Honoratus of Seville, together with numerous other bishops and representatives of absent prelates.
One of the first difficulties encountered during the investigation concerned the original records of the Third Council of Seville. The documents could not initially be located, and both Aventius and the surviving participants in the earlier proceedings claimed that they did not know where they had been placed. Copies eventually emerged, however, allowing the bishops to examine the original accusations and compare them with the testimony of the individuals involved.
The renewed investigation was considerably more extensive than the partial reconsideration undertaken in 633. Witnesses were questioned about their original statements, written agreements supporting Aventius were examined, and the bishops investigated allegations that testimony had been manipulated or obtained through intimidation.
These proceedings ultimately provided the foundation for the surviving Iudicium inter Marcianum et Habentium episcopos, which preserves the principal details of the investigation and the decision that brought the controversy to a conclusion.
False Testimony and the Investigation of 638
The investigation conducted in 638 revealed substantial irregularities in the proceedings that had resulted in Martianus’s deposition. One of the most important developments was the testimony of Eulalius, who acknowledged that written agreements had been used to organize opposition to Martianus and support the appointment of Aventius.
His confession prompted the bishops to reconsider the circumstances surrounding the original accusations, including the statements provided by those who had testified against Martianus at Seville. As the investigation continued, additional evidence emerged suggesting that witnesses had been pressured into making accusations or that their statements had been altered before being presented to the original council.
The allegations concerning the diviner Simplicia received particular attention. A witness named Recesvintus had originally claimed that he helped bring Simplicia to Martianus so that the bishop could inquire about his own future and the life of King Suinthila. During the renewed proceedings, however, Recesvintus maintained that his earlier testimony had been prepared under pressure and did not accurately reflect his knowledge of the incident.
The investigation also established that Recesvintus had not reached the minimum legal age of fourteen when he participated in the original proceedings. This discovery raised additional objections to the testimony upon which Martianus’s conviction had partly depended, particularly because the remaining evidence was insufficient to establish the accusation independently.
Two other witnesses, Franca and Honorata, challenged the statements attributed to them during the original trial. Both maintained that they had not left Simplicia alone with Martianus and that the written accounts of their testimony contained information they had never provided. Their inability to read had made it possible for other individuals to prepare statements that did not accurately represent their declarations.
The allegations involving Astania were also reconsidered. Although a presbyter named Gregory confirmed that she had entered Martianus’s chamber, other clerics explained that her brother Belisarius was responsible for the room and that she had visited him there. They also disputed the assertion that she possessed the keys to the bishop’s chamber or served as his personal attendant.
Bonella’s testimony presented a different set of problems. The bishops identified contradictions between statements she had made in Écija and Seville, including discrepancies concerning the timing of the alleged incident. They also considered the absence of corroborating evidence and the fact that her testimony had been obtained under torture.
The treatment of Bonella illustrates an important limitation of the judicial system operating within the Visigothic Church. As an enslaved woman, her legal and social position significantly affected the manner in which her testimony was evaluated, while the bishops examining the accusations occupied a much more privileged position within the same judicial system.
Although the investigation established that a conspiracy had been organized against Martianus and that important testimony had been manipulated, these findings do not necessarily demonstrate that every accusation against him was false. Rather, they reveal that the original proceedings had been compromised by serious irregularities and that the evidence presented against him was insufficient to sustain his condemnation.
The Restoration of Martianus and the Punishment of Aventius
As the investigation progressed, the assembled bishops uncovered additional evidence concerning Aventius’s attempts to obtain control of the bishopric of Écija. Several clerics acknowledged that they had participated in agreements to provide testimony against Martianus, while the surviving documents demonstrated that support for Aventius had been organized before the original trial.
The discovery of these agreements became central to the final judgment. The bishops concluded that Aventius had participated in an unlawful conspiracy against Martianus and had obtained his position through proceedings compromised by fabricated or unreliable testimony.
In determining the appropriate punishment, the assembly drew upon earlier ecclesiastical legislation, including the eighteenth canon of the Council of Chalcedon in 451, which prohibited members of the clergy and monastic communities from organizing conspiracies against bishops and other ecclesiastical authorities.
The bishops also considered earlier papal teachings concerning the reconsideration of ecclesiastical judgments, including a statement attributed to Pope Zosimus. These authorities supported the principle that an earlier decision could be reversed when a subsequent investigation established sufficient grounds for reconsideration.
The final judgment ordered the removal of Aventius from the bishopric of Écija and the restoration of Martianus to his former position. Aventius retained his episcopal rank but was required to undertake penance under the supervision of Martianus until he had satisfactorily addressed his misconduct.
The assembly nevertheless declined to condemn the surviving bishops who had participated in the original proceedings at Seville. Its judgment maintained that they had been deceived by false testimony rather than having deliberately manipulated the investigation against Martianus.
Seeking to prevent the dispute from continuing, the bishops also prohibited both Martianus and Aventius from pursuing further accusations against the surviving participants in the original proceedings. Any attempt to reopen the controversy could result in exclusion from communion and removal from ecclesiastical office.
The judgment was formally issued in the church of Saint Leocadia in Toledo on January 9, 638, bringing an end to a dispute that had occupied the Visigothic Church for several years. Its surviving text, preserved in a ninth-century manuscript, provides the most important account of the original council and the prolonged struggle over the bishopric of Écija.
The Disputed Canon Concerning Jewish Converts
Although the Third Council of Seville is principally remembered for the controversy surrounding Martianus, historians have also debated whether a surviving decree concerning Jewish converts should be attributed to the gathering.
The decree, known by its opening Latin words, Comperimus quosdam Iudaeos nuper ad fidem Christi vocatos, concerns Jews who had been compelled to accept Christianity and the religious obligations imposed upon them afterward. It survives within the Excerptum Canonicum, a collection of twenty canons transmitted in association with the Eighth Council of Toledo in 653.
Earlier historians identified the Seville council mentioned in this collection with the Third Council of Seville and consequently treated the decree as a surviving example of its religious legislation. The attribution appeared plausible within the broader context of seventh-century Visigothic policies concerning Jews and forced conversion, particularly following the measures introduced during the reign of King Sisebut.
However, more recent scholarship has questioned whether the decree originated at the council associated with Martianus’s deposition. In a study published in 2023, José Carlos Martín-Iglesias argued that it more probably belonged to an earlier council held in Seville around 616 or 617, shortly after Sisebut’s measures requiring the baptism of Jews within the Visigothic kingdom.
Under this reconstruction, the decree predates the Second Council of Seville in 619 and cannot confidently be assigned to the later gathering that condemned Martianus. Its uncertain attribution illustrates the difficulties historians encounter when reconstructing ecclesiastical assemblies whose original proceedings have disappeared.
The disputed canon also provides an important reminder that the councils of Visigothic Spain operated within a religious environment characterized by increasingly restrictive policies toward Jewish communities. Nevertheless, the surviving evidence does not establish that the Third Council of Seville itself enacted the decree, and its contents should not be presented as a confirmed decision of that assembly.
The Historical Significance of the Third Council of Seville
The Third Council of Seville occupies an unusual position in the history of early medieval Christianity because its importance is preserved primarily through the proceedings that eventually overturned its original judgment. Although the council’s acts have disappeared, the surviving records provide a detailed account of episcopal rivalry, ecclesiastical justice, and the difficulties of maintaining institutional authority when accusations were influenced by competing personal interests.
The experience of Martianus demonstrates how provincial councils could remove bishops from office and how larger ecclesiastical assemblies could subsequently reconsider those decisions. His partial restoration at the Fourth Council of Toledo in 633 and complete rehabilitation in 638 also reveal the distinction between recovering episcopal dignity and regaining authority over a particular diocese.
The controversy surrounding Aventius further illustrates the importance of personal alliances and organized factions within the Visigothic Church. The agreements obtained from witnesses, the manipulation of testimony, and the disappearance of the original records demonstrate the difficulties faced by ecclesiastical authorities when attempting to establish the truth in disputes involving influential members of the clergy.
For Isidore of Seville, the council provides an important example of his responsibilities beyond theological scholarship and religious education. His presidency of the original proceedings placed him at the center of a controversy that would eventually require reconsideration by the wider Visigothic episcopate, although the surviving evidence does not establish that he knowingly participated in the conspiracy against Martianus.
The case also reveals the limitations of early medieval ecclesiastical justice. While the investigation of 638 identified serious irregularities and ultimately reversed the original judgment, its treatment of enslaved witnesses reflected the social inequalities that shaped the legal and religious institutions of Visigothic Spain.
Ultimately, the Third Council of Seville is remembered not for a surviving collection of religious legislation but for the deposition of Bishop Martianus and the prolonged effort to reconsider his conviction. The controversy demonstrates how ecclesiastical councils exercised judicial authority, how their decisions could be challenged and reversed, and how personal rivalries within the clergy could influence the administration of justice in the early medieval Church.
Sources & Further Reading
Braulio of Zaragoza and Isidore of Seville. Braulionis Caesaraugustani Epistulae et Isidori Hispalensis Epistulae ad Braulionem. Edited by Ruth Miguel Franco and José Carlos Martín-Iglesias. Corpus Christianorum, Series Latina 114B. Turnhout: Brepols, 2018. https://www.brepols.net/products/IS-9782503582399-1 .
Castillo Maldonado, Pedro. “‘In ecclesia contra ecclesiam’: Algunos ejemplos de disputas, violencias y facciones clericales en las iglesias tardoantiguas hispanas.” Antiquité Tardive 15 (2007): 263–276. https://doi.org/10.1484/J.AT.2.303122 .
Collins, Roger. Visigothic Spain, 409–711. Oxford: Blackwell, 2004. https://doi.org/10.1002/9780470754610 .
Council of Chalcedon. “Canon XVIII.” 451. In The Seven Ecumenical Councils, edited by Henry R. Percival. Nicene and Post-Nicene Fathers, second series, vol. 14. Buffalo, NY: Christian Literature Publishing, 1900. https://www.newadvent.org/fathers/3811.htm .
Fear, Andrew, and Jamie Wood, eds. A Companion to Isidore of Seville. Brill’s Companions to the Christian Tradition 87. Leiden: Brill, 2020. https://brill.com/edcollbook/title/32879 .
Fita y Colomé, Fidel. Suplementos al Concilio Nacional Toledano VI. Madrid: Imprenta de Antonio Pérez Dubrull, 1881. https://www.deutsche-digitale-bibliothek.de/item/75YTSRCQXSMMQ2TK6NUC6ANFTRP5PXXL .
García Moreno, Luis A. “La oposición a Suintila: Iglesia, monarquía y nobleza en el reino visigodo.” Polis: Revista de Ideas y Formas Políticas de la Antigüedad 3 (1991): 13–24. https://ebuah.uah.es/dspace/handle/10017/5501 .
García Moreno, Luis A. Prosopografía del reino visigodo de Toledo. Salamanca: Universidad de Salamanca, 1974. https://eusal.es/producto/prosopografia-del-reino-visigodo-de-toledo/ .
González Salinero, Raúl. “Isidoro y los judíos en el único canon conservado del desaparecido Concilio III de Sevilla.” In Guerra y rebelión en la Antigüedad Tardía: El siglo VII en España y su contexto mediterráneo, edited by Luis A. García Moreno and Sebastián Rascón Marqués, 201–211. Alcalá de Henares: Ayuntamiento de Alcalá de Henares, 2005. https://dialnet.unirioja.es/servlet/autor?codigo=144247 .
Létinier y Michel, Rosine. La función judicial de los concilios hispanos en la Antigüedad tardía. León: Universidad de León, 1996. https://portalcientifico.unileon.es/documentos/5f94cc7c2999521ddf0b4ca8?lang=en .
Martín-Iglesias, José Carlos. “El Iudicium inter Marcianum et Habentium episcopos (a. 638): Estudio, edición y traducción.” Habis 49 (2018): 203–231. https://doi.org/10.12795/Habis.2018.i49.15 .
Martín-Iglesias, José Carlos. “En torno al origen y datación del Canon 10 Comperimus quosdam Iudaeos nuper ad fidem Christi uocatos, extraído de un concilio hispalense de época visigoda.” Veleia 40 (2023): 135–153. https://doi.org/10.1387/veleia.23036 .
Martínez Díez, Gonzalo, and Félix Rodríguez, eds. La Colección Canónica Hispana. Vol. 4, Concilios Galos, Concilios Hispanos: Primera parte. Madrid: Consejo Superior de Investigaciones Científicas, 1984. https://books.google.com/books?id=tFR4fyEu7CAC .
Martínez Díez, Gonzalo, and Félix Rodríguez, eds. La Colección Canónica Hispana. Vol. 5, Concilios Hispanos: Segunda parte. Madrid: Consejo Superior de Investigaciones Científicas, 1992. https://books.google.com/books?id=FbxENUiC5g8C .
Orlandis, José. “Tras la huella de un concilio isidoriano de Sevilla.” Anuario de Historia de la Iglesia 4 (1995): 237–246. https://dialnet.unirioja.es/servlet/autor?codigo=173730 .
Orlandis, José, and Domingo Ramos-Lissón. Historia de los concilios de la España romana y visigoda. Pamplona: Ediciones Universidad de Navarra, 1986. https://books.google.com/books?id=2r_YAAAAMAAJ .
Salvador Ventura, Francisco. Prosopografía de Hispania Meridional. Vol. 3, Antigüedad tardía (300–711). Granada: Universidad de Granada, 1998. https://editorial.ugr.es/libro/prosopografia-de-hispania-meridional_137818/ .
Stocking, Rachel L. “Martianus, Aventius and Isidore: Provincial Councils in Seventh-Century Spain.” Early Medieval Europe 6, no. 2 (1997): 169–188. https://doi.org/10.1111/1468-0254.00010 .
Stocking, Rachel L. Bishops, Councils, and Consensus in the Visigothic Kingdom, 589–633. Ann Arbor: University of Michigan Press, 2000. https://doi.org/10.3998/mpub.16864 .
Vives, José, ed., with Tomás Marín Martínez and Gonzalo Martínez Díez. Concilios visigóticos e hispano-romanos. Barcelona and Madrid: Consejo Superior de Investigaciones Científicas, Instituto Enrique Flórez, 1963. https://datos.bne.es/resource/bimo0000704018 .