Chatham ministry

Chatham (circa 1754)
The Duke of Grafton served as First Lord of the Treasury and succeeded Chatham as Prime Minister in 1768.
Anglo-Irish politician and future Prime Minister Lord Shelburne, a close ally of Chatham, served as Southern Secretary.

The Chatham ministry was a British government led by William Pitt, 1st Earl of Chatham that ruled between 1766 and 1768. Because of Pitt's former prominence before his title, it is sometimes referred to as the Pitt ministry. Unusually for a politician considered to be prime minister, Pitt was not First Lord of the Treasury during the administration, but instead held the post of Lord Privy Seal.