William O'Brien, 3rd Earl of Inchiquin


William MacWilliam O'Brien, 8th Baron of Inchiquin, 3rd Baron O'Brien of Burren, 3rd Earl of Inchiquin PC was an Irish nobleman.

Life

William O'Brien was the son of William O'Brien, 2nd Earl of Inchiquin and Lady Margaret Boyle. He married his cousin Mary Villiers, daughter of Sir Edward Villiers of Richmond and Frances Howard, the youngest daughter of Theophilus Howard, 2nd Earl of Suffolk and Elizabeth Hume.
Like his father, he was attainted in his absence by the Irish Parliament of King James II in 1689. He was Governor of Kinsale in 1693. He signed the declaration and association in defence of King William III after the assassination attempt against the King in 1697.
He was Privy Councillor to Queen Anne and King George I, Colonel of Foot in 1703 and Mayor of Kilkenny from 1704 to 1705. He was made Governor of County Clare.

Family

Children of William O'Brien, 3rd Earl of Inchiquin and Mary Villiers: