Robert Knight, 1st Earl of Catherlough, KB, (1702–1772), was a British Member of Parliament for Great Grimsby (1734–41, 1762–68), Castle Rising, Norfolk (1747–54) and Milborne Port, Somerset (1770–72). He became successively Baron Luxborough (1745), Viscount Barrells and Earl of Catherlough (both 1763), all titles within the peerage of Ireland. His wife, Henrietta Lady Luxborough, later became well known as a lady of letters, poet and pioneering landscape gardener.
