The First Rockingham ministry was a British ministry headed by the Marquess of Rockingham which served between 1765 and 1766 during the reign of George III. The government was made up mainly of his followers known as the Rockingham Whigs. The most influential member of the government was the Duke of Newcastle, a former Prime Minister, who served as Lord Privy Seal. It is often referred to as the only government ever to have been made up almost entirely of members of the Jockey Club - Rockingham being a prominent patron and follower of the turf. Rockingham was noted for his ignorance of foreign affairs, and his Ministry failed to reverse the growing isolation of Britain within Europe.
The Ministry fell in 1766 and was replaced by one headed by William Pitt.