Maredudd ap Bleddyn
Maredudd was born about 1047 in Montgomeryshire, Wales.  He died after 1132.

 Hunydd verch Einudd
Hunydd was born about 1063 in Dyffryn Clwyd, Denbighshire, Wales.

 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.

 Gruffudd ap Maredudd
Gruffudd was born about 1093 in Montgomeryshire, Wales.  He died in 1128.

 Prince Iowerth ("The Wary") ap Meredydd of Powys
Iowerth, known as "The Wary", was born about 1100 in Powys (Montgomeryshire), Cymru.  He died in 1177.