Pablo Iglesias Posse was a Spanish socialist and Marxist labour leader. He is regarded as the father of Spanish socialism, having founded the Spanish Socialist Workers' Party (PSOE) in 1879 and the Spanish General Workers' Union (UGT) in 1888.
- Occupation
- politician, trade unionist
- Position held
- member of the Congress of Deputies, councilor of the Madrid City Council, President of the Spanish Socialist Workers' Party
- Citizenship
- Spain
- Born
- October 18, 1850
- Died
- December 9, 1925