 Ruaidhrí and Máire built Carmelite priory at Rathmullan which was completed in 1516.Ruaidhrí had many successful campaigns with Ó Domhnaill, though in 1497 Conn Ó Domhnaill was defeated in battle by Tadhg Diarmada and Ruaidhrí was taken prisoner, also in the same year Ó Domhnaill was again defeated and Ruaidhrí's son was captured.When Ruaidhrí died in 1518 the lordship was again contested by members of the leading family.