Spencer Joshua Alwyne Compton, 2nd Marquess of Northampton, known as Lord Compton from 1796 to 1812 and as Earl Compton from 1812 to 1828, was a British nobleman and patron of science and the arts.

Spencer Perceval was a British statesman and barrister who served as Prime Minister of the United Kingdom from October 1809 until his assassination in May 1812. He is the only British prime minister to have been assassinated, and the only solicitor-general or attorney-general to have become prime minister.