Richard Lyons, 1st Viscount Lyons was a diplomat who served as British Ambassador to the United States from 1858-1865, encompassing the whole period of the American Civil War. His sister Augusta was married to Henry Granville Fitzalan-Howard, 14th Duke of Norfolk, whose family seat was at Arundel Castle. Lyons was buried in the Fitzalan Chapel at Arundel Castle when he died in 1887 and his papers are kept in the Castle’s archives.