In 1743 he became Bishop of Ossory; and in 1754, Archbishop of Cashel. He married in 1744 Anne O'Brien, daughter of James O'Brien (1695-1771) and Mary Jephson, and granddaughter of William O'Brien, 3rd Earl of Inchiquin and his wife Mary Villiers. _She_ died the following January, aged about 22, giving birth to their only son. <sep>, Pronoun: She <sep>, A: Mary Jephson <sep>, B: Mary Villiers