Savinian and Potentian

Saints Savinian and Potentian are venerated as patron saints of Sens, France, though they are not mentioned by Gregory of Tours or the Hieronymian Martyrology. One source suggests they were bishops of Sens, with Potentian succeeding Savinian, while another identifies only Savinian as a bishop and notes their role in spreading Christianity in Gaul under papal commission. Traditions vary, with one indicating they initially preached at Ferrières before moving to Sens, and another stating that Savinian was martyred with an axe at the site of the church's crypt dedicated to them.

Their veneration is marked by a church in Sens, said to have been founded in the third century, rebuilt in the fifth, and restored in the eleventh. This church's altar is believed to be where Savinian celebrated Mass during his martyrdom. At Chartres Cathedral, they are depicted in a stained glass window (number 17). They are also mentioned in the medieval poem *Lauds of Saint Julian*, which extols their virtues and contributions to Gaul.