> > The bigger problem arises from a preceeding paragraph that says:
> > "Berach Find m. Domongairt m. Bairr mc Sárbile cethri mc leis." Is
> > there anything here that explains how Barr could have two fathers?
> > Or is one of these be his mother?
"Berach the Fair, son of Domongart, son of Barr, son of Sárbile: he (had) 4 sons"
Sárbile is probably only a later spelling for classical genitive Sárbili.