Llywelyn ap Dafydd
Llywelyn ap Dafydd died at Bristol Castle in 1287 and was buried in the nearby Dominican church ( now known as Quakers Friars ) . His burial was paid for by King Edward I . His brother Owain would "succeed" him but would remain a prisoner until the end of his life . 
<triplet> Llywelyn ap Dafydd <subj> 1287 <obj> date of death <subj> Owain <obj> sibling