Austrobertus

Austrobertus (Austrebert) was bishop of Vienne in Dauphiné in the first half of the 8th century (about 719 to 742), and is venerated locally as a saint in the Western Church. His day is 5 June.

He was bishop in 719, when Pope Gregory II sent him a letter dated 31 August, and was still in office on 7 March 742, when he received a letter from Pope Zachary. His name is mentioned in the catalogue of Ado of Vienne. His predecessor was Saint Bobolinus and his successor Saint Wilcharius. He was forced to flee Vienne shortly after, because of the raids of the Saracens, and died "very far from Vienne", at a burial place known to Ado.