Oswiu of Northumbria
Some English monarchs, such as Oswiu of Northumbria (c. 612 – 15 February 670), Aldfrith (died 704 or 705) and Harold Godwinson (died 1066) were either raised in or sought refuge in Ireland, as did Welsh rulers such as Gruffudd ap Cynan. Alfred the Great may have spent some of his childhood in Ireland.