Partido Social Democrata (Portugal)

==Partido Popular Democrático==
===1974–1976===
==Partido Social Democrata==
===1976–1987===
===1987–1997===
===1997–2011===
====1999–2011 (secondary)====
===2011–present===
====2018–present====
Category:Political parties
Category:Center-right political parties
Category:Portugal
Category:Political parties in Portugal
Category:1974
Category:Right-wing political parties
Category:1970s
Category:Politics