Independent Radical Social Democratic Party ended in 1924.
Radical Democratic Union ended in 1989.
Radical Party - Italy - ended in 1989.
Radical Socialist Republican Party ended in 1934.
Radical Socialist Party - Luxembourg - ended in 1932.
Union of the Democratic Centre - Spain - ended in 1983.
British Democratic Party ended in 1982.
Democratic Society Party ended in 2009.
Ulster Democratic Party ended in 2001.
Lithuanian Democratic Party ended in 1920.
Democratic Agrarian Party ended in 1953.
Democratic Party of Russia ended in 2008.