Arthur Charles Valerian Wellesley, 9th Duke of Wellington, 9th Prins van Waterloo, 9th Duque da Vitória, 10th Duque de Ciudad Rodrigo, was born 19 August 1945 in Princess Christian Nursing Home, Windsor, Berkshire, England, United Kingdom to Arthur Valerian Wellesley, 8th Duke of Wellington (1915-2014) and Diana Ruth McConnel (1922-2010) . He married Antonia von Preußen (1955-) 3 February 1977 in St. Paul's Church, Knightsbridge, Greater London, England, United Kingdom.
|Offspring of Arthur Charles Valerian Wellesley, 9th Duke of Wellington and Antonia von Preußen (1955-)|
|Arthur Gerald Wellesley (1978-)|
|Honor Victoria Wellesley (1979-)|
|Mary Luise Wellesley (1986-)|
|Charlotte Anne Wellesley (1990-)|
|Frederick Charles Wellesley (1992-)|