Iorwerth Drwyndwn King of Gwynedd (1145–1174) Parents Gwladus ferch Llywarch ap Trahaearn Owain Gwynedd Children Llywelyn ab Iorwerth Siblings Maelgwn ab Owain Gwynedd Angharad ferch Owain Gwynedd Madog ab Owain Gwynedd Hywel ab Owain Gwynedd Dafydd ab Owain Gwynedd Rhodri ab Owain Gwynedd Iefan ab Owain Gwynedd Cynan ab Owain Gwynedd Rhun ab Owain Gwynedd Gwenllian ferch Owain Gwynedd Partners Marared ferch Madog
