.The story of St. Donatian and his brother St.
Rogatian is known from a 5th-century document, "the Passion of Children of Nantes". This is the basis for all later works, which also added some extra information to the legend, for example the tradition that they were related to a "illustrious"
Armorican family. St. Donatian and St. Rogatian were, it seems, the sons of the first
magistrate of the city. Donatian, the youngest, was baptized (probably by St.
Similien, third
bishop of Nantes, who outlived them). Donatian then evangelized his older brother, Rogatian. The family property, a
Gallo-Roman villa, also home to the first Christian church built in Nantes, stood on the site of the current
Basilica of St. Donatien-et-Saint-Rogatien. According to tradition, the church was built at the location of their graves, which was in their home, as was customary. According to the story, after being denounced as Christians, they were arrested and appeared before the
imperial prefect, the provincial governor, who asked them to sacrifice to
idols. When they refused, they were tortured and spent their last night praying together. That night, Rogatian regretted that he was going to die without being
baptized, but his brother reassured him, telling him that the blood of his
martyrdom would take the place of baptism. They were pierced by the spear of a
lictor and then beheaded on the morning of 24 May 304. According to tradition, their martyrdom took place outside the city walls, ==Veneration==