John Tyler (March 29, 1790 – January 18, 1862) was the tenth president of the United States from 1841 to 1845 after briefly serving as the tenth vice president in 1841; he was elected vice president on the 1840 Whig ticket with President William Henry Harrison. His wife, Mary Marot (Armistead), was the daughter of a prominent plantation owner, Robert Booth Armistead. She died of a stroke when her son John was seven years old. After graduation Tyler read the law with his father, a state judge at the time, and later with Edmund Randolph, former United States Attorney General. Tyler was erroneously admitted to the Virginia bar at the premature age of 19—the admitting judge neglected to ask his age. By this time his father was serving as Governor of Virginia (1808–1811), and the young Tyler started a practice in Richmond, the state capital. Julia later recovered from her grief and married Tyler.