William Pitt the Younger however, was comfortable with Shelburne, and thus joined his government; he was appointed Chancellor of the Exchequer. Fox, who became Pitt's lifelong political rival, then joined a coalition with Lord North, with whom he collaborated to bring about the defeat of the Shelburne administration. When Lord Shelburne resigned in 1783, King George III, who despised Fox, offered to appoint Pitt to the office of prime minister. But Pitt wisely declined, for he knew he would be incapable of securing the support of the House of Commons. The Fox–North coalition rose to power in a government nominally headed by William Cavendish-Bentinck,
William Pitt the Younger William Pitt the Younger William Pitt the Younger (28 May 1759 – 23 January 1806) was a prominent British Tory statesman of the late 18th and early 19th centuries. He became the youngest British prime minister in 1783 at the age of 24. He left office in 1801, but was Prime Minister again from 1804 until his death in 1806. He was Chancellor of the Exchequer for most of his time as Prime Minister. He is known as "the Younger" to distinguish him from his father, William Pitt, 1st Earl of Chatham, called "William Pitt the Elder" or simply "Chatham",