Question: What is the date of death of Owain Ap Dafydd's father?
Sentence (from "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.
Relevant evidence: No