*Gwenllian verch Madog
born about 1130 Montgomeryshire, Wales

father:
*Madog ap Maredydd
born about 1091 Montgomeryshire, Wales
died 1160 Winchester, Hampshire, England
buried St. Tysilio, Meifod, Montgomeryshire, Wales

mother:
*Susanna verch Gruffyd
born about 1095 Caernarvonshire, Wales

siblings:
*Margred verch Madog born about 1129 Montgomeryshire, Wales
Owain ap Madog born about 1136 Montgomeryshire, Wales
Iorwerth ap Madog born about 1134 Montgomeryshire, Wales
Miss verch Madog born about 1137 Montgomeryshire, Wales
Elise ap Madog born about 1127 Montgomeryshire, Wales
Llewelyn ap Madog born about 1123 Montgomeryshire, Wales died 1160
Owain "Fychan" ap Madog born about 1125 Mechoin, Montgomeryshire, Wales died 1186
*Gruffydd "Maelor" ap Madog born about 1121 Montgomeryshire, Wales died about 1191
Efa verch Madog born about 1133 Montgomeryshire, Wales

spouse (1st):
*Rhys "Fychan" ap Gruffudd Prince of South Wales
born about 1129 Dynevor Castle, Llandilo, Carmarthenshire, Wales
died after 24 April 1197
buried St. David's, Pebidiog, Pembrokeshire, Wales

children (from 1st marriage):
*Rhys "Gloff" (or "Gryg"?) ap Rhys born about 1150 Carmarthenshire, Wales
died 1233 Dynevor, Llandyfeisant, Carmarthenshire, Wales
buried 1233 St. David's, Pebidiog, Pembrokeshire, Wales
*Gruffudd ap Rhys born about 1148 Carmarthenshire, Wales
died 25 July 1201 Strata Florida, Caronuwchclawdd, Cardiganshire, Wales
buried Strata Florida, Caronuwchclawdd, Cardiganshire, Wales
Cadwgan ap Rhys born about 1149 Dynevor Castle, Llandilo, Carmarthenshire, Wales
Margred verch Rhys born about 1151 Carmarthenshire, Wales
Maredudd "Gethin" ap Rhys born about 1152 Carmarthenshire, Wales died 1210
Nest verch Rhys born about 1156 Dynevor Castle, Llandilo, Carmarthenshire, Wales
*Gwenllian verch Rhys born about 1158 Carmarthenshire, Wales died 1236
Lleision ap Rhys born about 1170 Elfaeluwchmynydd, Radnorshire, Wales

spouse (2nd):
*Maelgwn "Hen" ("Fawr") ap Rhys
born before 1187 Carmarthenshire, Wales
died 1231

children (from 2nd marriage):
*Maelgwn "Ieuanc" ("Fychan") ap Maelgwn
born Carmarthenshire, Wales
died 1257

biographical and/or anecdotal:

notes or source:
LDS
research of S. E. Oman Salt Lake City