Radical Democratic Party - Spain - was created in 1871.
Radical Democratic Party - Spain - ended in 1880.
Union of the Democratic Centre - Spain - was created in 1977.
Party of Labour of Spain was created in 1975.
Moderate Party - Spain - was created in 1834.
Progressive Party - Spain - was created in 1834.
Workers' Party - Spain - was created in 1979.
Unified Communist Party of Spain was created in 1980.
People's Party - Spain - was created on 1989-01-20.
New Generations of the People's Party of Spain was created in 1978.
The Communist Party of Spain (PCE) was founded on November 14, 1921. It played a significant role in Spanish politics during the 20th century, particularly during the Spanish Civil War and the subsequent Francoist dictatorship.
Union of the Democratic Centre - Spain - ended in 1983.