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Vivianus (also Bibianus; died c. 490) was an early saint of the French (Francian) church and the first known 
A brief ''Life'' of his dated to the mid 6th century was edited by Krush in 1896.MGH, SRM 3 (1896), 94-100. Krusch thought the text dated to the Carloingina period, but it is now typically dated to about the same time as Gregory's ''Glory of the Confessors'', see Raymond Van Dam (ed., trans.),
Volume 4 of Latin series, Translated Texts for Historians Series, Liverpool University Press, 1988
p. 42, fn. 63
He is also mentioned by Gregory of Tours later in the 6th century, who refers to the earlier text, saying "a book that has already been written about his life narrates the bulk of his miracles".
bishop of Saintes
The former French diocese of Saintes existed from the 6th century to the French Revolution. Its bishops had their see in the cathedral of Saintes in western France, in the modern department of Charente-Maritime. After the Concordat of 1801, the ...
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A brief ''Life'' of his dated to the mid 6th century was edited by Krush in 1896.MGH, SRM 3 (1896), 94-100. Krusch thought the text dated to the Carloingina period, but it is now typically dated to about the same time as Gregory's ''Glory of the Confessors'', see Raymond Van Dam (ed., trans.),
Volume 4 of Latin series, Translated Texts for Historians Series, Liverpool University Press, 1988p. 42, fn. 63
He is also mentioned by Gregory of Tours later in the 6th century, who refers to the earlier text, saying "a book that has already been written about his life narrates the bulk of his miracles".
References
Merovingian saints Bishops of Saintes 490s deaths Year of birth unknown {{France-saint-stub