[1] From the 14th century at least, when a stone cross was erected in the ruler's memory in the abbey's churchyard, Pabo has been identified as its founder, having retired, as many Welsh kings are said to have done, to a heremitic retreat.
[1] The genealogies give him a royal line of descendants as the father of Dunod Fawr, Sawyl Penuchel and Ardun Benasgell, and a saintly one as the grandfather of Deiniol, Asaph and Tysilio.
Their son Sanctan founded Kilnasantan in County Dublin after travelling to Ireland with his brother Matóc Ailithir.
The first author to record it is antiquarian Henry Rowlands (d. 1723), who writes that "Pabo, frequently called Post Prydain, i.e. the Support of Britain, for his great valour against the Picts and Scots, retired here [in Anglesey], and built his church at Llan Babo.
The inscription is in part illegible but the following reading has been suggested; Some scholars argue, in the absence of early evidence, that the tradition is probably spurious[1] though the identity of the historical Pabo who did give his name to the church remains otherwise unknown.