Cassius Marcellus Clay

Cassius Marcellus Clay
Portrait c. 1860
United States Ambassador to Russia
In office
May 7, 1863 – October 1, 1869
President
Preceded bySimon Cameron
Succeeded byAndrew Gregg Curtin
In office
July 14, 1861 – June 25, 1862
PresidentAbraham Lincoln
Preceded byJohn Appleton
Succeeded bySimon Cameron
Member of the Kentucky House of Representatives from Madison County
In office
1835–1841
Personal details
Born(1810-10-09)October 9, 1810
DiedJuly 22, 1903(1903-07-22) (aged 92)
Madison County, Kentucky, U.S.
Party
Spouses
  • (m. 1833; div. 1878)
  • Dora Richardson
    (m. 1894; div. 1897)
Children11, including Mary, Brutus, and Laura
Parent
Alma mater
Occupation
Known forAbolitionist activism
Signature
Military service
Branch/service
Years of service
  • 1846–1847
  • 1861–1863
RankMajor general
Unit
  • 1st Kentucky Cavalry
  • Clay's Washington Guards
Battles/wars
Preview warning: Page using Template:Infobox officeholder with deprecated parameter "serviceyears". Replace with "service_years".

Cassius Marcellus Clay (October 9, 1810 – July 22, 1903) was an American planter, politician, military officer and abolitionist who served as the United States ambassador to Russia from 1863 to 1869.

Born in Kentucky to a wealthy planter family, Clay entered politics during the 1830s and grew to support the abolitionist cause in the U.S., drawing ire from fellow Southerners. A founding member of the Republican Party in Kentucky, he was appointed by President Abraham Lincoln as the U.S. minister to Russia. Clay is credited with influencing Russian support for the Union during the American Civil War.