 The destruction of the settlement by English forces in 1398 left it a ruin but it continued as a church of local importance and a place of pilgrimage.Glendalough is on the 1598 map "A Modern Depiction of Ireland, One of the British Isles" by Abraham Ortelius as "Glandalag".Descriptions of Glendalough from the 18th and 19th centuries include references to occasions of "riotous assembly" on the feast of St. Kevin on 3 June.