Iowerth (Drwyndwn) ap Owain Gwynedd,
Birth date:
1128
Birth place:
Aberffraw Castle, Caernarvonshire, , Wales
 
Death date:
  1174
Death place:
  , , ,

ap Owain Gwynedd, Family

Parents:
Father: Owain Ap Gruffydd,
Mother: Gwladus Ferch_llywarch
Spouse:
Spouse: Margred Ferch Madog
 
Siblings:
Iowerth (Drwyndwn) ap Owain Gwynedd,
Gwenilian Verch Owain
Children:
Llewelyn Fawr ap Iowerth Drwyndwn,