Bleddyn "Sais" ap Cynfyn
Bleddyn "Sais" ap was born in Powys, Montgomeryshire, Wales.  He died in 1075 in Powys Castle, Montgomeryshire, Wales.

 Hear of Powys
Hear of was born in Gest near Penmorfa, Caernarvonshire, Wales.  Hear of is no longer alive.

 Cadwgon of Nannau
Cadwgon of was born about 1047 in Nannau, Caernarvonshire, wales.  He died in 1111 in Welshpool y Trallwm, Powys, Wales.

 Gwenllian verch Bleddyn
Gwenllian verch was born about 1056 in Montgomeryshire, Wales.

 Maredudd ap Bleddyn
Maredudd ap was born in Monmouthshire, Wales.  He died about 1132.

 Iorwerth ap Bleddyn
He died in 1103.

 Madog ap Bleddyn
He died in 1088.