Saint Turiau was an eighth-century Breton abbot and bishop who served the ancient Diocese of Dol. Born into nobility in the region of Vannes, he pursued a religious life, becoming a monk and a priest. Following his instruction in piety and learning, he was ordained by Saint Thiarmail. He later succeeded to the episcopal seat, serving as a dedicated and courageous pastor for his people in Brittany.
Life and ministry

During his tenure as bishop, Turiau was known for his strict discipline and intense devotion to prayer. He famously confronted a powerful lord named Rivallon regarding his violent actions. By intervening directly at the man's castle, the bishop successfully compelled him to undergo seven years of canonical penance to rectify his past injustices.
Veneration and legacy

The relics of the saint were eventually moved to Paris during the Norman invasions and are preserved at the abbey of Saint Germain-des-Prez. According to local tradition, these remains have been credited with miraculously extinguishing fires. He is commemorated in the church calendar on July 13.
