MacDermot Roe (MacDiarmata Ruadh) is the name of a sept of the MacDermot Kings of Moylurg. Tracing their origin to 1266, the MacDermots Roe (MacDiarmata Ruadh) of Ireland served as Biatachs General of the Kingdom of Connacht and were the principal patrons of the Irish composer Turlough Carolan, 1670–1738. The MacDermots Roe exemplify the role played by a leading Irish family under the old Gaelic order and its fate after the consolidation of English rule in the early 17th century.