On September 11, 506, bishops from across the Visigothic territories of southern Gaul entered a basilica dedicated to the Apostle Andrew in the Mediterranean city of Agde. They had come to settle questions of church discipline, clerical conduct, worship, property, monastic life, and the everyday organization of Christian communities at a moment when the political world of Roman Gaul was rapidly changing.
The opening words of the surviving acts leave unusually little doubt about where they gathered. The bishops recorded that they had assembled in the city of Agde, “in sancti Andreae basilica,” in the Basilica of Saint Andrew. Unlike many ancient churches whose histories depend almost entirely upon later traditions, the existence of Saint Andrew’s basilica at Agde is therefore securely documented at the beginning of the sixth century.
The church visible at Agde today has been rebuilt and altered many times, and it would be misleading to present the existing structure as the untouched basilica in which the bishops sat in 506. Yet beneath and around the later building lies a remarkable combination of documentary, archaeological, and religious evidence. Fifth-century burials, sixth-century sarcophagi, Gregory of Tours’s account of relics of Saint Andrew, and medieval charters concerning the monastery all allow the history of the site to be traced across more than a millennium.
Saint-André is therefore important for more than one famous council. Its history follows the transformation of Christianity in southern Gaul from the world of the late Roman Empire, through Visigothic rule and the rise of the medieval monastery, into the churches and religious institutions of later France.
Christianity Returns to Late Antique Agde
Agde had a history far older than Christianity. Established as the Greek colony of Agathe, the settlement developed near the mouth of the Hérault River and participated in Mediterranean trade long before the arrival of the Christian bishops who would later make the city famous. By Late Antiquity, however, the political and religious landscape of southern Gaul had changed dramatically.
Archaeologist Daniela Ugolini has placed the emergence of Christian Agde within a broader revival of occupation during the fifth century, when the region came under Visigothic control. Agde became part of a world in which Roman institutions, local elites, Catholic bishops, and Visigothic rulers existed beside one another, sometimes cooperating and sometimes competing for authority.
The Saint-André site appears to have developed in an area already associated with burial. Archaeological investigation around the church found evidence of a Late Antique cemetery and an even older occupation of the site. This is important because early Christian churches were frequently connected with cemeteries, saints, relics, and places where the dead were commemorated.
The French Ministry of Culture accordingly describes Saint-André as standing on an ancient and then Early Christian necropolis and considers the foundation of a church there likely to reach back into the early centuries of Christianity in Gaul. What remains uncertain is exactly when the first Christian building was erected and what form it took.
Saint Sever and the Tradition of the First Monastery
Later tradition connected the beginnings of Saint-André with Saint Sever, or Severus, an early Christian holy man associated with Agde. His surviving hagiographical tradition describes him as a wealthy Syrian who abandoned his former life, traveled westward, and eventually reached the region near the mouth of the Hérault during the fifth century.
According to the tradition preserved in the Vita Sancti Severi abbatis Agathensis, Sever distributed his wealth for charitable purposes and became associated with a religious community at Agde. Later accounts placed that community near the Basilica of Saint Andrew and eventually regarded Sever as the founder or early abbot of the monastery attached to it.
This tradition must be handled cautiously. The Life of Saint Sever is hagiography, written to preserve the memory and sanctity of its subject rather than to provide a modern chronological history. It cannot be treated in the same way as the dated acts of the Council of Agde. Modern scholarship therefore tends to describe the foundation of Saint-André by Sever as a tradition rather than a demonstrable fact. Jean Nougaret’s study of medieval Agde likewise says that the foundation of the basilica is attributed to Saint Sever rather than presenting the claim as certain.
Even with that caution, the tradition is significant. It shows how later Christians in Agde remembered the beginnings of their religious community and associated Saint-André with the earliest period of organized Christianity in the city. Archaeology has also shown that the location was already being used for burials during the fifth and sixth centuries, so the broad setting reflected by the tradition fits what is known about the Christian development of the area, even if the details of Sever’s life cannot all be independently confirmed.
September 506 and the Council of Agde
The uncertainty surrounding Saint Sever disappears when the history reaches 506.
The Council of Agde provides the first indisputable written evidence for the Basilica of Saint Andrew. Its opening declaration dates the gathering to the twenty-second year of the reign of the Visigothic king Alaric II and to September 11. The bishops then state plainly that they had assembled at Agde in the Basilica of Saint Andrew to consider the discipline and ordination of clergy and the interests of the churches.
The political setting makes the gathering especially important. Agde lay within the kingdom of Alaric II, a Visigothic ruler who adhered to Arian Christianity while governing a population that included large numbers of Nicene Christians. The council took place with Alaric’s permission and under the leadership of Caesarius, bishop of Arles, one of the most influential churchmen of early sixth-century Gaul. Modern study of the council recognizes its first forty-seven canons as the authentic body of legislation produced at Agde, while additional canons attached to the council in later manuscript traditions came from other sources.
Caesarius’s own correspondence provides a second contemporary connection to the gathering. In a letter written to Bishop Ruricius of Limoges after the council, Caesarius complained about Ruricius’s absence and referred to a letter that had been sent to him at Agde. The correspondence does not describe the basilica itself, but it places Caesarius in the city and independently confirms the reality of the episcopal meeting recorded in the conciliar acts.
Inside Saint Andrew’s basilica, the assembled churchmen addressed problems that reached deep into Christian life. They discussed the behavior and responsibilities of bishops, priests, and deacons, the protection of church property, the regulation of monasteries, worship, marriage and clerical discipline, relations with Jews, and the administration of local churches.
Several canons reveal how strongly the bishops connected church property with care for the poor. One ordered that people who withheld donations given to churches or monasteries should be excluded from the church until the property was returned. Another restricted bishops from selling church lands and possessions that supported the poor. These were not abstract theological debates. The council was attempting to regulate the economic and institutional foundations upon which Christian communities depended.
This gives Saint-André unusual historical importance. The basilica was not simply the backdrop to the Council of Agde. For at least several days in September 506, it became one of the places where the organization of Western Christianity was being debated and defined.
A Catholic Council Under an Arian King
The meeting also illustrates the complicated religious world of the Visigothic kingdom. Alaric II was an Arian Christian, while Caesarius and the bishops gathered at Agde belonged to the Nicene or Catholic tradition. Yet the king permitted the bishops to meet and legislate concerning the internal affairs of their churches.
The council occurred during a politically dangerous period for the Visigothic monarchy. Frankish power under Clovis was expanding, and only the following year Alaric II would be killed fighting the Franks at the Battle of Vouillé. The Visigothic position in much of Gaul then collapsed.
Against that background, the Council of Agde can be viewed as both a religious gathering and a product of Alaric’s attempt to manage relations among the different communities living under his rule. Modern scholarship has connected the choice of Agde and the permission given to the bishops with the broader political diplomacy of the Visigothic king.
Whatever Alaric’s political intentions, Saint Andrew’s basilica temporarily became a meeting ground between the realities of Visigothic government and the increasingly organized authority of the Catholic episcopate.
Gregory of Tours and the Relics of Saint Andrew
The council acts establish Saint-André as a functioning basilica in 506, but they tell us little about its physical appearance or devotional life. For that, one of the most valuable sources comes later in the sixth century from Gregory of Tours.
In his Glory of the Martyrs, Gregory included an entire chapter devoted to the miracles of the Apostle Andrew in the church at Agde. He opens by saying that the church of the city rejoiced in relics of Saint Andrew and was frequently illuminated by miracles. Whatever modern readers make of the miraculous elements of Gregory’s account, his testimony is extremely important evidence that Saint-André was remembered as a shrine containing relics associated with the Apostle.
Gregory then tells a story involving Bishop Leo of Agde and a count named Gomacharius. According to the account, Gomacharius seized a field belonging to the church. Leo confronted him and pleaded that he return property whose produce had supported the poor.
Gomacharius refused. Gregory portrays him as a heretic, almost certainly reflecting the Catholic author’s hostility toward Arian Christianity. The count was then struck by fever and promised to restore the land if the bishop prayed for him. After recovering, however, he again seized the property.
Gregory describes Leo responding not with soldiers or a lawsuit, but with prayer, vigils, tears, and a dramatic extinguishing of the church’s lamps. Gomacharius fell ill again. He eventually offered to restore twice what he had taken, but died as Leo entered the church, after which Saint-André recovered its property.
Read as hagiography, the story is meant to demonstrate divine protection of sacred property and the power associated with Saint Andrew. Read historically, however, it also tells us something about the church itself. Saint-André possessed land, supported poor people from its resources, contained hanging lamps used in worship, claimed important relics, and stood at the center of a continuing struggle over religious and economic authority.
The story also preserves the memory of Catholic and Arian tension in southern Gaul. Only decades after an Arian king had permitted Catholic bishops to gather at Saint-André, Gregory used the same church as the setting for a story in which a Catholic bishop triumphs over a heretical official.
What Archaeology Found Around Saint-André
Written sources can tell us that a basilica existed, but archaeology offers the possibility of finding the physical world that surrounded it.
Rescue excavations carried out around Saint-André in 1986 and 1987 produced some of the strongest material evidence for the early history of the site. Noël Houlès reported that approximately forty burials were investigated, with the earliest dating to the fifth century and the latest extending into the post-medieval period.
The excavations revealed several distinct phases of burial. Late Roman graves were followed by an Early Medieval cemetery containing sarcophagi, tile-built tombs, and stone-lined graves. Houlès dated some of the sarcophagi and associated material to the sixth and seventh centuries.
Most intriguing were two parallel walls discovered near sixth-century sarcophagi. Houlès suggested that these walls could have belonged to a religious structure that predated the graves. The evidence does not permit archaeologists simply to label those walls as the exact basilica in which the council met, but it demonstrates that substantial early structures existed within the same funerary landscape.
The archaeological sequence therefore matches the documentary evidence remarkably well. By 506, the council acts prove that a Basilica of Saint Andrew stood at Agde. Later sixth-century testimony associates the church with relics and ecclesiastical property. Meanwhile, excavation shows a Christian funerary landscape developing around the site during precisely those centuries.
There is no need to force the evidence beyond what it can prove. Together, the documents and archaeology already make Saint-André one of the better documented early Christian sites in the region.
From Ancient Basilica to Medieval Monastery
The centuries after Gregory of Tours are less clearly illuminated, but Saint-André survived as a religious institution and eventually appears again in an exceptionally valuable body of medieval documentation.
By the eleventh century, however, the monastery was in serious decline.
An original charter dated April 1064 records Count Roger and Gontier, bishop of Agde, giving the ruined monastery of Saint Andrew to the great Benedictine Abbey of Saint-Victor of Marseille. The surviving document describes Saint-André as a monastery requiring restoration and names Saint-Victor as the institution expected to revive it. The charter survives as an original parchment in the Archives départementales des Bouches-du-Rhône, and the TELMA database classifies its authenticity as not suspected.
The importance of that document is difficult to overstate. More than five centuries after the bishops gathered in Saint Andrew’s basilica, a surviving medieval original shows that a monastery bearing the same dedication remained attached to the site.
Further documentation from around 1100 refers to monks of Saint-Victor living in the monastery of blessed Andrew near the city of Agde and records donations of vineyards to the community. The surviving medieval charters, together with the cartularies of Saint-Victor and the cathedral chapter of Agde, create an unusually strong documentary bridge between the ancient religious site and the medieval priory.
The Ministry of Culture records that Saint-André eventually became firmly attached to Saint-Victor of Marseille, with the relationship definitive by 1114.
The institution that had once hosted an assembly of bishops was now part of one of the major monastic networks of southern France.
Centuries of Rebuilding
The survival of Saint-André as an institution does not mean that its original sixth-century walls survived unchanged.
This distinction is essential.
The official French monument record dates the principal visible construction campaigns to the eleventh, twelfth, eighteenth, and nineteenth centuries. It states that the present plan might reproduce the arrangement of the primitive church, but emphasizes that this cannot be demonstrated.
Some Romanesque fabric survives, while later medieval and early modern construction reshaped the church. The present building has a nave divided into four bays, a square-ended eastern sanctuary, lateral chapels, and a northern entrance whose pointed portal reflects nineteenth-century Neo-Gothic work. The bell tower also contains portions that may belong to the Romanesque period.
Inside the church stands what local tradition calls the “column of the council.” The basalt column has sometimes been described as a surviving piece of the sixth-century basilica. The Ministry of Culture is more careful. It records the tradition but does not authenticate the column as a surviving architectural element from the church of 506.
That caution actually makes the history of Saint-André more interesting. The importance of the site does not depend on pretending that every visible stone was touched by Caesarius and the bishops. The documentary evidence proves the existence of their basilica, while archaeology demonstrates the antiquity of the sacred landscape beneath and around the later church.
Seminary, Parish, Revolution, and Restoration
Saint-André continued to change with the religious institutions of France.
During the sixteenth century the priory became connected with other ecclesiastical institutions, and in the seventeenth century the complex was used as a seminary and later as a college-seminary entrusted to the Oratorians. In 1676 Saint-André became a parish church, a function it retained until the upheaval of the French Revolution.
The Revolution brought a dramatic break with its ancient religious use. Saint-André was converted into an artillery facility. A building whose documented Christian history stretched back to the age of Alaric II and Caesarius of Arles was temporarily absorbed into the military infrastructure of revolutionary France.
Only in 1848 was the church returned to worship. Nineteenth-century restoration brought further alterations, adding another architectural layer to a site that had already been rebuilt repeatedly over more than a thousand years.
The former church of Saint-André was inscribed as a French Monument historique on April 3, 1984. The designation recognizes the importance of a building whose surviving fabric belongs to many periods, but whose historical identity reaches back to one of the best documented episcopal gatherings of Late Antique Gaul.
Can We Still See the Basilica of 506?
Visitors naturally want to know whether the church standing at Place Gambetta is the same basilica in which the Council of Agde met.
The best historical answer is both yes and no.
It is the same religious site, and the evidence connecting Saint-André with the basilica of 506 is exceptionally strong. The council acts name Saint Andrew’s basilica directly. Gregory of Tours later describes Saint Andrew’s church at Agde, its relics, bishop, lands, and devotional life. Archaeology has revealed fifth and sixth-century burials and possible religious structures around the church. Medieval charters then document the monastery of Saint Andrew and its transfer to Saint-Victor.
What cannot be demonstrated is that the walls, nave, roof, chapels, and façade visible today reproduce the sixth-century building. The French Ministry of Culture explicitly warns that although the current plan may preserve something of the primitive arrangement, the evidence is insufficient to prove it.
That distinction matters because Saint-André is more historically valuable when its story is told accurately. It is not a perfectly preserved time capsule from 506. It is a sacred site repeatedly rebuilt by generations who continued to recognize the religious importance of the place.
Why the Basilica of Saint Andrew Matters
The Basilica of Saint Andrew at Agde occupies an unusual place in the history of early Christianity.
Its existence is established not merely through tradition but through the words of bishops who actually gathered there in September 506. Within its walls they attempted to impose order on churches living through the political transformation of the western Roman world. They debated clergy, property, monasteries, worship, and Christian discipline while ruling authority rested with an Arian Visigothic king whose kingdom in Gaul stood only a year away from military disaster.
A few generations later, Gregory of Tours remembered Saint-André as a church possessing relics of an apostle and protected by miraculous power. Centuries afterward, medieval charters documented its monastery, its decline, and its restoration under Saint-Victor of Marseille. Archaeologists eventually uncovered the graves of people who had been buried around the sacred site during the very centuries when Christianity was establishing itself permanently at Agde.
The building changed. Kingdoms disappeared. Bishops, monks, Oratorians, revolutionaries, soldiers, priests, archaeologists, and modern visitors all passed through the same location.
Yet one line written in 506 anchors the entire history.
The bishops came to Agde and sat together in the Basilica of Saint Andrew.
For a church that has been reconstructed so many times, those surviving words provide something stone alone cannot. They establish Saint-André as one of the places where the changing Christian world of Late Antiquity can still be tied to a specific place, a specific day, and a gathering whose decisions continued to influence Western church life long after the Visigothic kingdom that permitted it had disappeared.
Sources & Further Reading
Baratier, Édouard. “La fondation et l’étendue du temporel de l’abbaye de Saint-Victor.” Provence historique 16, no. 65 (1966): 395–441. https://www.persee.fr/doc/prohi_0033-1856_1966_num_16_65_4001
Castaldo, André. L’Église d’Agde (Xe–XIIIe siècle). Paris: Presses Universitaires de France, 1970. https://www.persee.fr/doc/jds_0021-8103_1971_num_3_1_1248
Caesarius of Arles. “Dum nimium.” In Caesarius of Arles: Life, Testament, Letters, translated by William E. Klingshirn. Liverpool: Liverpool University Press, 1994. https://www.scribd.com/document/854466995/Ruricius-of-Limoges-and-Friends-a-Collection-of-Letters-From-Visigothic-Gaul-Ralph-W-Mathisen-Transl-Z-Library
Chalon, Michel. “Le concile d’Agde: Discipline ecclésiastique.” In Le concile d’Agde et son temps: Quinzième centenaire, 11 septembre 506–11 septembre 2006, edited by Jean-Claude Rivière, Jean-Paul Cros, and Jacques Michaud. Archéologie en Languedoc, 2008. https://www.etudesheraultaises.fr/publi/archeologie-le-concile-dagde-et-son-temps-506-2006/
Foreville, Raymonde. “Le chapitre cathédral d’Agde d’après le cartulaire de Saint-Étienne.” In Les évêques, les clercs et le roi, 285–333. Cahiers de Fanjeaux 7. Toulouse: Privat, 1972. https://www.persee.fr/doc/cafan_0575-061x_1972_act_7_1_1045
Foreville, Raymonde. “Un diocèse languedocien au Moyen Âge: Histoire et documents de l’Église d’Agde.” Journal des Savants, no. 3 (1971): 187–205. https://www.persee.fr/doc/jds_0021-8103_1971_num_3_1_1248
Foreville, Raymonde, ed. Le Cartulaire du chapitre cathédral Saint-Étienne d’Agde. Paris: Institut de Recherche et d’Histoire des Textes/CNRS, 1995. https://www.persee.fr/doc/dirht_0073-8212_1995_cat_51_1
Gregory of Tours. Glory of the Martyrs. Translated by Raymond Van Dam. 2nd ed. Translated Texts for Historians 4. Liverpool: Liverpool University Press, 2004. https://www.jstor.org/stable/jj.38238833
Gregory of Tours. Liber in gloria martyrum. In Gregorii Turonensis Opera 2: Miracula et Opera Minora, edited by Bruno Krusch. Monumenta Germaniae Historica, Scriptores rerum Merovingicarum 1.2. 2nd ed. Hannover, 1969. https://la.wikisource.org/wiki/Miraculorum_libri_VIII
Guérard, Benjamin, ed. Cartulaire de l’abbaye de Saint-Victor de Marseille. 2 vols. Paris, 1857. https://gallica.bnf.fr/ark:/12148/bpt6k91413b
Hefele, Charles Joseph. A History of the Councils of the Church. Vol. 4. Edinburgh: T. & T. Clark, 1895. https://archive.org/details/historyofcouncil04hefe
Houlès, Noël. “Fouilles autour de l’église Saint-André en Agde (Hérault).” Archéologie en Languedoc, no. 4 (1987): 107–120. https://www.etudesheraultaises.fr/wp-content/uploads/ael-art-1987-4-05-fouilles-autour-de-eglise-saint-andre-agde.pdf
Institut de Recherche et d’Histoire des Textes. “Severus Abbas Agathensis, BHL 7670.” Légendiers latins. Accessed October 8, 2026. https://legendiers-latins.irht.cnrs.fr/indexes?letter=s&type=dossierbhl
Jordan, Balthazar. Histoire de la ville d’Agde depuis sa fondation et statistique au 1er janvier 1824. Montpellier, 1824.
Klingshirn, William E. Caesarius of Arles: The Making of a Christian Community in Late Antique Gaul. Cambridge: Cambridge University Press, 1994. https://www.cambridge.org/core/books/caesarius-of-arles/34D1DC71FD50A20F00EC4DCDA273886D
Mabillon, Jean. “Vita S. Severi Abbatis Agathensis.” In Acta Sanctorum Ordinis S. Benedicti. Paris, seventeenth century. https://www.e-rara.ch/zuz/content/structure/27905636
Mansi, Giovanni Domenico, ed. Sacrorum Conciliorum Nova et Amplissima Collectio. Vol. 8. Florence and Venice, eighteenth century. https://www.ethesis.net/more_paganorum/more_paganorum_deel_IX.htm
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://dokumen.pub/ausgewhlte-synoden-galliens-und-des-merowingischen-frankenreichs-herausgegebenscholz-sebastian-goetz-hans-werner-9783534275366-9783534275571-3534275365.html
Ministère de la Culture. “Ancienne église Saint-André.” POP: Plateforme ouverte du patrimoine, Base Mérimée, PA00103341. Accessed October 8, 2026. https://pop.culture.gouv.fr/notice/merimee/PA00103341
Ministère de la Culture. “Ancienne cathédrale Saint-Étienne d’Agde.” In Cathédrales d’Occitanie. Accessed October 8, 2026. https://www.culture.gouv.fr/content/download/182716/pdf_file/Duo_cathedrales_Occitanie_2017_09.pdf
Munier, Charles, ed. Concilia Galliae, A. 314–A. 506. Corpus Christianorum Series Latina 148. Turnhout: Brepols, 1963, 192–228. https://about.brepolis.net/wp-content/uploads/2016/09/llt_a_list_of_works.pdf
Nougaret, Jean. “Agde.” Enciclopedia dell’Arte Medievale. Rome: Istituto della Enciclopedia Italiana, 1991. https://www.treccani.it/enciclopedia/agde_%28Enciclopedia-dell%27-Arte-Medievale%29/
Parish of Agde. “Église Saint André.” Accessed October 8, 2026. https://eglisedagde.jimdoweb.com/nos-%C3%A9glises/eglise-saint-andr%C3%A9/
Projekt Pseudoisidor. “Concilium Agathense.” Council of Agde, 506. Accessed October 8, 2026. https://www.pseudoisidor.mgh.de/html/097.htm
Rivière, Jean-Claude, Jean-Paul Cros, and Jacques Michaud, eds. Le concile d’Agde et son temps: Quinzième centenaire, 11 septembre 506–11 septembre 2006. Archéologie en Languedoc, 2008. https://www.etudesheraultaises.fr/wp-content/uploads/ael-revue-concile-agde-2008.pdf
Scholz, Sebastian, and Hans-Werner Goetz, eds. Ausgewählte Synoden Galliens und des merowingischen Frankenreichs. Darmstadt, 2022. https://dokumen.pub/ausgewhlte-synoden-galliens-und-des-merowingischen-frankenreichs-herausgegebenscholz-sebastian-goetz-hans-werner-9783534275366-9783534275571-3534275365.html
Szafranowski, Jerzy. “Council of Agde.” Presbyters in the Late Antique West. University of Warsaw. Accessed October 8, 2026. https://www.presbytersproject.ihuw.pl/index.php?id=6&SourceID=922
TELMA. “Acte no. 4230: Donation de Saint-André d’Agde à Saint-Victor de Marseille, 1064.” Chartes originales antérieures à 1121 conservées en France. Institut de Recherche et d’Histoire des Textes. Accessed October 8, 2026. https://telma.irht.cnrs.fr/outils/originaux/charte4230/
TELMA. “Acte no. 4348: Donation concernant le monastère Saint-André d’Agde, ca. 1100.” Chartes originales antérieures à 1121 conservées en France. Institut de Recherche et d’Histoire des Textes. Accessed October 8, 2026. https://telma.irht.cnrs.fr/outils/originaux/charte4348/
Ugolini, Daniela. “Agde de la fin de l’établissement grec à l’évêché.” In Le concile d’Agde et son temps: Quinzième centenaire, 11 septembre 506–11 septembre 2006, edited by Jean-Claude Rivière, Jean-Paul Cros, and Jacques Michaud, 235–262. Archéologie en Languedoc, 2008. https://www.etudesheraultaises.fr/publi/archeologie-le-concile-dagde-et-son-temps-506-2006/
Wikisource. “Concilia Galliae.” Includes the Latin text of the Council of Agde of 506. Accessed October 8, 2026. https://la.wikisource.org/wiki/Concilia_Galliae
“Agde: Fouilles archéologiques terrestres. Recherches sous-marines.” Études Héraultaises. Accessed October 8, 2026. https://www.etudesheraultaises.fr/publi/agde-fouilles-archeologiques-terrestres-recherches-sous-marines/
“Les Possessions des Évêques d’Agde du IXe au début du XIIIe siècle.” Études Héraultaises. Accessed October 8, 2026. https://www.etudesheraultaises.fr/publi/les-possessions-des-eveques-dagde-du-ixe-au-debut-du-xiiie-siecle/