Gwilym ap Gronwy ab Ednyfed Fychan ap Cynwrig

Parents

• Morfudd ferch Meurig
• Goronwy ab Ednyfed Fychan

Children

Siblings

• Gronwy ab Ednyfed Fychan of Tref Castell
• Tudur Hen
• Alice ferch Gronwy ab Ednyfed Fychan