*Gwladys verch Rhiwallon
born about 1041 Powys, Wales

father:
*Rhiwallon ap Cynfyn
born about 1025 Powys, Wales
died 1070 (slain) Battle of Mechain, Montgomeryshire, Wales

mother:
unknown

siblings:
*Sioned (Jonet) verch Rhiwallon born about 1037? Powys, Wales

spouse (1st):
*Walter FitzOtho de Windsor
born about 1037 Pembroke, Pembrokeshire, Wales
died after 1086

children (from 1st marriage):
William FitzWalter de Windsor born about 1068 Pembroke, Pembrokeshire, Wales
*Geraldus FitzWalter de Windsor born about 1070 Carew Castle, Pembrokeshire, Wales
died before 1136
Robert FitzWalter de Windsor born about 1072 Estains, Essex, England died 1158

spouse (2nd):
*Rhys ap Tewdwr
born about 0997 Carmarthanshire, Wales or Brittany, France
died 1093 Brecknock, Breconshire, Wales

children (from 2nd marriage):
*Gruffydd ap Rhys born about 1081 Llandilo, Carmarthshire, Wales died April 1137
*Llywelyn "Ddiriaid" ap Rhys born about 1084 Dynevor, Llandyfeisant, Carmarthenshire, Wales
*Margred verch Rhys born about 1089 Carmarthenshire, Wales
*Nest verch Rhys Princess of Deuhebarth
born about 1073 Dynevor Castle, Carmarthenshire, Wales

biographical and/or anecdotal:

notes or source:
ancestry.com