Gwriad ab Elidyr

Gwriad ab Elidyr (Welsh pronunciation: [ˈguːrjad ab ɛˈlɪdɪr]) was an eighth-century British figure who was very probably ruler of the Isle of Man. Very little is known of him, yet he is nevertheless one of the few early medieval Welsh figures with whom can be associated contemporary evidence of his existence, in this case a stone cross erected near Maughold likely bearing his name. Gwriad's marriage with Esyllt ferch Cynan Dindaethwy, a member of the First Dynasty of Gwynedd, produced the king of Gwynedd Merfyn Frych. Merfyn succeeded his mother's relative Hywel ap Caradog and ruled Gwynedd from 826 to 844, founding the Second Dynasty of Gwynedd. Gwriad was therefore the ancestor of this dynasty and ultimately also the dynasty of Deheubarth through his great-grandson Cadell ap Rhodri.