King Madog ap Maredydd of Powys
Madog was born about 1091 in Montgomeryshire, Wales.  He died in Winchester, Hampshire, England.  He was buried in St. Tysilio, Meifod, Montgomeryshire, Wales.

 Efa ferch Eirian
Efa was born in Maen-Gwynedd, Cymru .

 Cynwrig Efell ap Madog
Cynwrig Efell was born in Powys, Cymru.