Cynfyn AP GWERYSTAN Prince of Powys
(Abt 1002-)
(Abt 982-)
Rhiwallon AP CYNFYN Prince of Powys
Unnamed Princess of Powys
(Abt 1000-)
Gwladus FERCH RHIWALLON of Powys
(Abt 1051-)


Family Links

Rhys "Mawr" AP TEWDWR King of Deheubarth

Gwladus FERCH RHIWALLON of Powys

  • Born: Abt 1051, Powys, Montgomery, Wales
  • Married: Bef 1081

   Another name for Gwladus was Gladys COMYN.

   Research Notes:

The Chronicle of the Princes of Wales records in 1106 that "Cadwgan son of Bleddyn and Gwladus daughter of Rhiwallon, the mother of Nest were cousins, as Bleddyn and Rhiwallon, sons of Cynvyn, were brothers". 1

   Marriage Information:

Gwladus married Rhys "Mawr" AP TEWDWR King of Deheubarth, son of Tewdwr "Mawr" AP CADELL of South Wales and Unknown 1st wife, before 1081. (Rhys "Mawr" AP TEWDWR King of Deheubarth was born about 1035 in Caerfyrddin, Ystrad Tywi, Cymru and died in Apr 1093 in Brycheiniog, Wales.)


1 Foundation for Medieval Genealogy,

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