Triffyn's name is usually considered as derived from the
Roman title
tribunus, and in some texts his name is written much closer to the original
Latin word. While Triffyn's parentage of Aergol is consistent in sources, his own descent is now unclear with multiple ancestries claimed in different genealogies. Early Irish genealogies name Triffyn's father as , an invader of the dynasty of
Eochaid Allmuir ("Eochaid the Foreigner"), remembered in his native land as a member of the
Déisi. Welsh genealogies that do not mention Aed Brosc name Triffyn's father as
Owain Fraisg. In addition some Welsh genealogies claim Triffyn was a descendant of the Roman usuper
Magnus Maximus. Triffyn is supposed to have married Gwledyr, daughter of Clydwyn ap Ednyfed, though this connection is described in tentative language by Bartrum. ==References==