Gruffydd ap Iestyn
Gruffydd ap Iestyn was born about 1078. Gruffydd ap Iestyn's father was
last Prince of Glamorgan, King of Morgannwg Iestyn ap Gwrgant and his mother is
Gwenwyn verch Cyfan. His paternal grandparents are
Prince of Powys Gwrgant ap Ithel and
Gwladus verch Ednowen Bendew *. He has three brothers and two sisters, named
Rhodri ap Iestyn,
Morgan Hir ap Iestyn,
Hywel ap Iestyn,
Sybil verch Iestyn and
Gwenllian verch Iestyn. He is the third oldest of the six children. He has eleven half-brothers and two half-sisters, named
Mareddud ap Iestyn,
Cynfrig ap Iestyn,
Cadogan ap Iestyn,
Rhywallon ap Iestyn,
Rhudlan ap Iestyn,
Yoreth ap Iestyn,
Meurig ap Iestyn,
Caradog ap Iestyn,
Rhys ap Iestyn,
Morgan ap Iestyn,
Madog ap Iestyn,
Ellen verch Iestyn and
Nesta verch Iestyn.