Gwenllian ferch Gwilym ap Hywel Grach ap Gwilym ap Hywel

(1361-1455) (1361–1455)

Parents

• Gwilym ap Hywel Grach ap Gwilym ap Hywel
• Elsbeth Walbyf

Children

• Morgan ap Dafydd Gam ap Llywelyn ap Hywel Fychan
• Gwladys ferch Dafydd Gam

Siblings

• Trahaearn ap Gwilym ap Hywel Grach ap Gwilym of Crai
• Ieuan ap Gwilym ap Hywel Grach ap Gwilym of Abercrai
• Rhys ap Gwilym ap Hywel Grach ap Gwilym