Owain Cyfeiliog ap Gruffudd
Owain Cyfeiliog ap was born in 1125 in Montgomeryshire, Southern Powys, Wales.  He died at the age of 72 in 1197.

 Gwenllian I ferch Owain
Gwenllian I ferch was born about 1124 in Caernarvonshire, Wales.

 Gwenwynwyn ap Owain Cyfeiliog
Gwenwynwyn ap Owain was born about 1165 in Powys, Wales.  He died in 1216.