The PCEU congress held in Bilbao in March 1981 was considered illegitimate by one sector of the party, leading to a split of the party into two.
Spain | Republican Party (United States) | Democratic Party (United States) | Australian Labor Party | Democratic Party | Liberal Party of Canada | Liberal Party of Australia | Republican Party | Liberal Party (UK) | Social Democratic Party of Germany | Liberal Party | Nazi Party | communist | Philip II of Spain | New Democratic Party | Progressive Conservative Party of Canada | Democratic-Republican Party | Communist | Green Party | Democratic-Republican Party (United States) | Social Democratic Party | Progressive Conservative Party of Ontario | Conservative Party of Canada | Ontario Liberal Party | Communist Party | Galicia (Spain) | Communist Party of China | political party | Socialist Party | Spain national football team |