Parliament (Zgromadzenia Narodowe or National Assembly) is bicameral and is located in Warsaw.
The Sejm has 460 members, who are elected to four-year terms. The Senate has 100 members, who are elected to four-year terms.
Rulers
ca. 960-992 Mieszko I (Prince)
992-1025 Boleslaw I Chrobry (King since 1025)
1025-1034 Mieszko II Lambert
1034-1058 Kazimierz I Odnowiciel (Prince)
1058-1079 Boleslaw II Smialy (King since 1076)
1079-1102 Wladyslaw I Herman (Prince)
1102-1138 Boleslaw III Krzywousty (Prince)
1138-1320 (Districts’ Breakdown)
1295-1296 Przemysl II
1300-1305 Waclaw II
1305-1306 Waclaw III
1306-1333 Wlasyslaw Lokietek (King since 1320)
1333-1370 Kazimierz III Wielki
1370-1382 Ludwik Andegawenski
1384-1399 Jadwiga
1386-1434 Wladyslaw II Jagiello
1434-1444 Wladyslaw III Warnenczyk
1447-1492 Kazimierz IV Jagiellonczyk
1492-1501 Jan I Olbracht
1501-1506 Aleksander
1506-1548 Zygmunt I Stary
1548-1572 Zygmunt II August
1573-1574 Henryk Walezy
1575-1586 Stefan Batory
1587-1632 Zygmunt III Waza
1632-1648 Wladyslaw IV
1648-1668 Jan II Kazimierz
1669-1673 Michal Korybut Wisniowiecki
1674-1696 Jan III Sobieski
1697-1704 August II Mocny
1704-1710 Stanislaw Leszczynski
1710-1733 August II Mocny
1733-1733 Stanislaw Leszczynski
1733-1763 August III Saski
1763-1795 Stanislaw August Poniatowski
1772-1918 (The Partitions of Poland)
Premiers
1918-1919 Jedrzej Moraczewski
1919-1919 Ignacy Paderewski
1919-1920 Leopold Skulski
1920-1920 Wladyslaw Grabski
1920-1921 Wincetny Witos
1921-1922 Antoni Ponikowski
1922-1922 Artur Sliwinski
1922-1922 Julian Nowak
1922-1923 Wladyslaw Sikorski
1923-1923 Wincetny Witos
1923-1925 Wladyslaw Grabski
1925-1926 Aleksander Skrzynski
1926-1926 Wincenty Witos
1926-1926 Kazimierz Bartel
1926-1928 Joseph Pilsudski
1928-1929 Kazimierz Bartel
1929-1929 Kazimierz Switalski
1929-1930 Kazimierz Bartel
1930-1930 Walery Slawek
1930-1930 Joseph Pilsudski
1930-1931 Walery Slawek
1931-1933 Aleksander Prystor
1933-1934 Janusz Jedrzejewicz
1934-1935 Leon Kozlowski
1935-1935 Walery Slawek
1935-1936 Marian Zyndram-Koscialokowski
1936-1939 Felicjan Slawoj-Skladkowski
1945-1947 Edward Osóbka-Morawski
1947-1952 Józef Cyrankiewicz
1952-1954 Boleslaw Bierut
1954-1970 Józef Cyrankiewicz
1970-1980 Piotr Jaroszewicz
1980-1980 Edward Babiuch
1980-1981 Józef Pinkowski
1981-1985 Wojciech Jaruzelski
1985-1988 Zbigniew Messner
1988-1989 Mieczyslaw Rakowski
1989-1989 Czeslaw Kiszczak
1989-1991 Tadeusz Mazowiecki
1991-1991 Jan Krzysztof Bielecki
1991-1992 Jan Olszewski
1992-1992 Waldemar Pawlak
1992-1993 Hanna Suchocka
1993-1995 Waldemar Pawlak
1995-1996 Józef Oleksy
1996-1997 Wlodzimierz Cimoszewicz
1997-1997 Marek Belka
1997-2001 Jerzy Buzek
2001-2004 Leszek Miller
2004-2005 Marek Belka
2005-2006 Kazimierz Marcinkiewicz
2006-2007 Jaroslaw Kaczynski
2007 now Donald Tusk
Presidents
1918-1922 Joseph Pilsudski (Head of State)
1922-1922 Gabriel Narutowicz
1922-1926 Stanislaw Wojciechowski
1926-1939 Ignacy Moscicki
1939-1947 Wladyslaw Raczkiewicz
1947-1952 Boleslaw Bierut
1952-1964 Aleksander Zawadzki
1964-1964 Edward Ochab, Stanislaw Kulczynski, Oskar Ryszard Lange, Boleslaw Podedworny
1964-1968 Edward Ochab (Leader of the State Council)
1968-1970 Marian Spychalski (Leader of the State Council)
1970-1972 Józef Cyrankiewicz (Leader of the State Council)
1972-1985 Henryk Jablonski (Leader of the State Council)
1985-1990 Wojciech Jaruzelski
1990-1995 Lech Walesa
1995-2005 Aleksander Kwasniewski
2005-2010 Lech Kaczynski
2010-2010 Bronislaw Komorowski (acting)
2010-2010 Bogdan Borusewicz (acting)
2010-2010 Grzegorz Schetyna (acting)
2010 now Bronislaw Komorowski
