Llywelyn ap Dafydd
Following the death of Llywelyn ap Gruffudd on 11 December 1282 the governance of Gwynedd was placed in the hands of Llywelyn's successor , his brother , Dafydd ap Gruffudd . 
<triplet> Llywelyn ap Gruffudd <subj> 11 December 1282 <obj> date of death <subj> Dafydd ap Gruffudd <obj> sibling <triplet> Dafydd ap Gruffudd <subj> Llywelyn ap Gruffudd <obj> sibling