William Cavendish-Bentinck, the 3rd Duke of Portland, was a British statesman born in 1738. He served as Prime Minister of Great Britain from 1783 to 1784. Known for his quiet demeanor, he focused on domestic issues and was a member of the Whig Party. Cavendish-Bentinck played a significant role in the early development of the British government and was involved in various political reforms. His tenure was marked by challenges, including the aftermath of the American Revolutionary War. He passed away in 1809, leaving a legacy in British politics.