Lord Rhys Mechyll ap Rhys
Rhys Mechyll was born about 1170 in Dynevor.  He died in 1244.

 Matilda de Braose
Matilda was born about 1150 in Bramber, Sussex, England.  She died in 1201.

 Lord Rhys Fychan ap Rhys Mechyll of Dynevor
Rhys Fychan was born in Wales.  He died on August 17th, 1271 in Castle Dynevor.  He was buried in Tal y Lychau.