Owain Gwynedd ap Gruffydd King of Gwynedd  24
- Born: Abt 1087, Caernarvonshire, Wales
- Marriage (1): Gwladus (or Gladys) verch Llywarch 
- Marriage (2): Christina 
- Died: Dec 1169, Caernarvonshire, Wales about age 82
- Buried: Bangor Cathedral, Is Gwyrfai, Caernarvonshire, Wales
See "The History of Gruffydd ap Cynan," Arthur Jones (Manchester, 1910).
Has ancestry chart in Wikipedia
Noted events in his life were:
• Acceded: King of Gwynedd, 1137. King of Gwynedd 1137-1170
Owain married Gwladus (or Gladys) verch Llywarch  [MRIN: 2366], daughter of Llywarch ap Trahaern Lord of Pembroke  and Dyddgy of Builth .
Owain next married Christina  [MRIN: 2354], daughter of Gronw ap Owain  and Unknown.