Rodrigo de Cerrato (1259–1276), Castilian historian and hagiographer
The 17th-century hagiographer John Colgan, in his Acta Sanctorum Hiberniae (Louvain, 1645) says that he was living in 818, and gives the date of Clement's death as 20 March and the place as Auxerre, where he was interred in the church of Saint-Amator.
Eustathius is reported by the hagiographer to have been a Persian cobbler originally called Gvirobandak, son of a Zoroastrian priest (magi), from Ganzak.
Odo of Glanfeuil was a ninth-century Benedictine abbot of Saint-Maur-des-Fossés, a historian, and hagiographer.