Gruffydd Maelor I
Prince of Powys Fadog (–)
Parents
Children
Siblings
- Owain Fychan
- Owain Fychan ap Madog ap Maredudd ap Bleddyn, lord of Mechain Is y Coed
- Gwenllian ferch Madog ap Maredudd ap Bleddyn
- Efa ferch Madog
- Llywelyn ap Madog
- Efa ferch Madog ap Maredudd ap Bleddyn
- Marared ferch Madog
- Cynwrig Efell ap Madog ap Maredudd ap Bleddyn ap Cynfyn, lord of Y Glwysegl
- Einion Efell ap Madog ap Maredudd, lord of Cynllaith
- Owain Brogyntyn