Ernest Augustus, Duke of Cumberland (1771-1851), was a member of the British royal family and the son of King George III. He became the Duke of Cumberland in 1799 and was known for his strong opinions and political involvement, particularly in the affairs of Hanover, where he served as a governor. In 1837, he became the King of Hanover after the death of his brother, William IV, but he lost the British throne due to the Salic Law, which prohibited female succession. Ernest Augustus was also known for his opposition to the reform movements of his time and his conservative views.