American Anti-Federalist politician and Founding Father who represented Virginia at the U.S. Constitutional Convention and played a key role in formulating the United States Bill of Rights.
He practiced law and became a justice of the Fairfax County Court before being elected to the Virginia House of Burgesses in 1759.
Although he was a slave owner, he was in favor of ending the slave trade in the United States (although not necessarily slavery as a practice).
He was married to Ann Eilbeck from 1750 until her death in 1773; the couple had twelve children together. He later married Sarah Brent.
He collaborated with future United States President James Madison on the formulation of the Bill of Rights.