Iorwerth Drwyndwn, b: 1145 - Aberffraw Castle, Wales




		^{Owain I of Wales}^{b.1100 d.1170}

	^{Iorwerth Drwyndwn}^{b.1145 Aberffraw Castle, Wales d.1174}

		^{Gwladys ferch Llywarch}^{b. d.}

^{Llywelyn "the Great"}^{b.1165 Aberffraw Castle, Wales d.1240 Aberconwy, Wales}



	^{Marared voz Madog}^{b.1135 Montgomeryshire, Wales d.}