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 after having offered the position to him three times previously. A constitutional crisis arose when the King dismissed the Fox-North coalition government and named Pitt to replace it. Though faced with a hostile majority in Parliament, Pitt was able to solidify his position in a few months' time. Some historians argue that his success was inevitable given the decisive importance of monarchical power; others argue that the King gambled on Pitt and that both would have failed but for a run of good fortune. Pitt, at the age of 24, became Great Britain's youngest Prime Minister ever. The contemporary satire