Question: Who is the paternal grandfather of Cadfan Ap Cadwaladr?
Sentence (from "Cadfan ap Cadwaladr"): Cadfan ap Cadwaladr, Lord of Ceredigion (c. 1140 - c. 1215) was the elder son of Cadwaladr ap Gruffydd, the brother of Owain Gwynedd, King of Gwynedd and overlord of all Wales.
Relevant evidence: Yes