Gruffudd ap Maredudd
Gruffudd ap was born about 1095 in Wales.  He died in 1128.

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