From The Stargate Omnipedia

Son of Damaris, a loyal servant of the Ori who eventually became a Prior. Damaris left both his sons (including Jaden) and wife, Adina, behind to fall into the ultimately fruitless service of the Ori.


The Fourth Horseman, Part 2 - To convince him that he is an Ancient, Orlin reminds Damaris of his son, Allon, whom he left behind when he became a Prior.