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.

 Matilda de Marley
Matilda was born about 1115 in Marley, Cheshire, England.

 Baron Iowerth Fychan ap Iowerth of Main in Meiford
Iowerth Fychan was born about 1134.