St. Samson was a generation younger than Illtud and was ordained by him at the abbey of Llanwit Major. There is an inscribed stone at the church there which states it was prepared for the souls of himself and others, one of which is a king called Iuthahelo, that is Ithel. This is likely to be Ithel Hael of Llydaw, thus indicating Llydaw was not only the name for Brittany but also of a region of Glamorgan. Illtud’s father was Bicanus, prince of Llydaw. He may have preceded Erb, king of Gwent and Ergyng, and been conflated with Erbic, a later king. This would suggest Bicanus was of gen. -2 and Illtud of gen. -1. His mother was Rieingulid, daughter of Anblawd, wrongly identified as Amlawdd Wledig.
V. Samsonis states that he was a disciple of St. Germanus but chronology indicates this could not have been the bishop of Auxerre. The V. Ninnochae states:
“Sanctus Germanus episcopus ex Hibernensium regione transmissus a Sancto Patricio archiepiscopo, venit ad Brochanum regem Britanniæ.”
This individual, who was contemporary with the Brychan of gen. -1, is likely to have been the Germanus who ordained Illtud.