Career
He lived in Gwynedd. Some lines of a praise poem to Llywelyn ab Iorwerth, Prince of Gwynedd, have survived, together with three impressive religious awdlau (odes). Amser Mai, maith dydd, neud rhydd rhoddi,
Neud coed nad ceithiw, ceinlliw celli. Neud llafar adar, neud gwâr gweilgi,
Neud gwaeddgreg gwaneg gwynt yn edwi,
Neud erfai ddoniau goddau gweddi,
Neud argel dawel, nid mau dewi.
