Prince Bleddyn ap Cynfyn of Powys
Bleddyn was born about 1025 in Montgomeryshire, Wales.  He died  due to murdered in 1075 in Powis Castle.

 Angharad verch Brochwel

 Prince Cadwgan ap Bleddyn of Powys
Cadwgan was born about 1035 in Montgomery, Wales.  He died  due to slain in 1111.

 Efa verch Bleddyn
Efa was born in Montgomeryshire, Wales.