BATH, THOMAS THYNNE, 1ST MARQUESS OF (1734 1796), English politician, was the elder son of Thomas Thynne, 2nd Viscount Weymouth. Born on Sept. 13 17 34, Thomas Thynne succeeded his father as 3rd Viscount Weymouth in January 1751, and was lord-lieutenant of Ireland for a short time during 1765, although he never visited that country. He was appointed secretary of State for the northern department in January 1768; and was a prominent anti-Wilkite, being partially responsible for the "St. George's fields massacre." Before the close of 1768 he was transferred from the northern to the southern department, but he resigned in Dec. 177o. In Nov. 1775 Weymouth returned to his former office of secretary for the southern department, but resigned in 1779. In 1789 he was created marquess of Bath, and he died on Nov. 19 1796. Weymouth was a man of considerable ability especially as a speaker. Horace Walpole refers to his drunkenness, and in early life at least "his great fortune he had damaged by such profuse play, that his house was often full of bailiffs." He is said to have been a close friend and frequent com panion of Charles James Fox.
See B. Botfield, Stemmata Botevilliana (1858) .