Ruins on St Patrick’s Isle on the west coast of the Isle of Man encapsulate the history of Christianity and of political domination on the island through the medieval period. Remains of monastic buildings and a Christian burial ground at Peel Castle date from Man’s early Christian period—roughly 500 AD to 900 AD—which saw the conversion of the Celtic population. Scandinavian subordination of Man began with Viking raids at the end of the 700s and lasted until 1265.