Sebastian Ulick Browne, 12th Marquess of Sligo (born 27 May 1964), is a peer in the Peerage of Ireland. As Baron Monteagle, he is also a peer in the Peerage of the United Kingdom. The Marquess holds the subsidiary titles of Baron Mount Eagle, Viscount Westport, Earl of Altamont, and Earl of Clanricarde, all in the Peerage of Ireland. The son of Captain Lord Ulick Browne (1915-1979) and his second wife Fiona Glenn, he was educated at Rugby School. He married Christina Maria Suaznabar, of Bolivia, in 1984, by whom he has two children: *Lady Camilla Browne (b. 1986) *Christopher Ulick Browne, Earl of Altamont (b. 14 November 1988) The couple divorced in 1992.