Family: Iorwerth Drwyndwn ap Owain / Princess Margaret verch Madog, of Powys (F5259853353)

Prince Owain Fawr ap Gwynedd, of Wales (1100-1170)

Glwladys verch Llywarch (1098- )

 

 

Prince Gruffydd Maelor Ap Madog ( -1269)

Prince Madog Fadog ap Meredydd, of Powys (1091-1160)

Susanna verch Gruffydd (1095- )

 

 

Iorwerth Drwyndwn ap Owain (1130-1173)

Princess Margaret verch Madog, of Powys (1134- )

Prince of North Wales Llywelyn ap Iorwerth (1173-1240)