Iowerth oir Gwyndwn ap Owain, b: 1130 -


			^{Gruffudd ap Cynan}^{b.1054 Dublin, Ireland d.1136 Caernarvon, Wales}

		^{Owain ap Gruffudd}^{b.1100 Gwynedd, Wales d.1169}	^{Angharad verch Owain}^{b.1065 Tegaingl, F, Wales d.}

	^{Iowerth oir Gwyndwn ap Owain}^{b.1130 d.1174 Pennant, Walkes}		^{Llywarch ap Trahaiarn}^{b.1070 Arwystli, Wales d.1128}

		^{Gwladys ferch Llywarch}^{b.1098 Pembroke, Wales d.}	^{Dyddgu verch Idnerth}^b.1060 d.

^{Hywel ap Iowerth}^{b. Edeligion, Wales d.}



	^{Angharad verch Uchdrud}^{b. Llandaf, Wales d.}