Owain Cyveiliog ap Gruffydd
Owain Cyveiliog ap was born about 1118 in Powys, Wales.  He died in 1197 in Ystrad Marcell (Strada Marcella), Powys, Wales.

 Gwenllina verch Owain Gwynedd
Gwenllina verch Owain was born about 1120 in Caernarvonshire, Wales.  She died about 1165.

 Gwerful verch Owain Cyfeiliog
Gwerful verch Owain was born in Cyfeiliog, Montgomery, Wales.