谁嫁给了Dafydd ap Llywelyn？

Dafydd ap Llywelyn (c. April 1212 – 25 February 1246) was King of Gwynedd from 1240 to 1246.

Isabella, Princess of Wales and Lady of Snowdon (c. 1222 – c. 1248) was the eldest daughter of William de Braose, Lord of Abergavenny,

and his wife Eva Marshal (daughter of William Marshal, 1st Earl of Pembroke). Isabella was married to Dafydd II, Prince of Wales, though their marriage proved childless.