Llywelyn ap Dafydd
The only senior members of the Welsh royal family who retained their liberty were Llywelyn ap Dafydd's uncle Rhodri ap Gruffudd and cousin Thomas ap Rhodri , who had formally renounced their rights to the Principality . 
<triplet> Rhodri ap Gruffudd <subj> Thomas ap Rhodri <obj> child <triplet> Thomas ap Rhodri <subj> Rhodri ap Gruffudd <obj> father