Owain Cyfeiliog Ap Gruffudd
Owain Cyfeiliog was born about 1171.  He died in 1197.  He was buried in 1197.

 Gwenllia Verch Owain Gwynedd

 Cyfeiliog Verch Owain
Cyfeiliog was born about 1144.

 Gwenwynwyn Ap Owain
Gwenwynwyn was born about 1201.

 Constance Of Powys Princess