Saint Claudius of Vienne () was a bishop of Vienne in the Dauphiné, France, in the first half of the fifth century. He is considered a saint of the Roman Catholic Church.Santiebeati.it - San Claudio di Vienne
He attended the Council of Orange in 441 and the Council of Vaison in 442.Louis Duchesne, Fastes épiscopaux de l'ancienne Gaule. Provinces du Sud-Est (tome premier), vol. 3, Paris, Thorin et fils, 1894, p. 146 (online version)
Salvianus dedicated his work, now lost, on Ecclesiastes to Claudius.Gennadius, De uiris illustribus, LXVII (PL 58, 1847, col. 1099A), cited in Gérard Lucas, Vienne dans les textes grecs et latins: Chroniques littéraires sur l'histoire de la cité, des Allobroges à la fin du Ve siècle de notre ère, MOM Éditions, coll. "Travaux de la Maison de l’Orient et de la Méditerranée", 2018, , pages 247–270: "Adon de Vienne, Chronique", esp. "Tableau récapitulatif de la liste des évêques de Vienne jusqu'à Avit", 122. col. 91D (online version)
His feast day is celebrated on 1 June. He is further celebrated on 1 July on the collective feast of all the bishop saints of Vienne with Saint Martin.Diocese of Grenoble: Histoire
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