Which British prime minister was known as 'The Great Commoner'?

William Pitt, 1st Earl of Chatham (15 November 1708 – 11 May 1778) was a British statesman of the Whig group who led the government of Great Britain twice in the middle of the 18th century. Historians call him Pitt of Chatham, or William Pitt the Elder, to distinguish him from his son, William Pitt the Younger, who also was a prime minister. Pitt was also known as 'The Great Commoner', because of his long-standing refusal to accept a title until 1766.

Pitt is best known as the wartime political leader of Britain in the Seven Years' War, especially for his single-minded devotion to victory over France, a victory which ultimately solidified Britain's dominance over world affairs. He is also known for his popular appeal, his opposition to corruption in government, his support for the colonial position in the run-up to the American War of Independence, his advocacy of British greatness, expansionism and colonialism, and his antagonism toward Britain's chief enemies and rivals for colonial power, Spain and France. Peters argues his statesmanship was based on a clear, consistent, and distinct appreciation of the value of the Empire.