Question: When is Hawys Gadarn's father's birthday?
Sentence (from "Owen de la Pole"): Owen de la Pole (c. 1257 – c. 1293), also known as Owain ap Gruffydd ap Gwenwynwyn, was the heir presumptive to the Welsh principality of Powys Wenwynwyn until 1283 when it was abolished by the Parliament of Shrewsbury.
Relevant evidence: Yes