Pre-Duchy
- Lech - (6th century)
- Krak I - (7th century)
- Krak II - (7th century)
- Lech II - (7th century)
- Wanda - (7th century)
- Leszko I - (7th - 8th century)
- Leszko II - (8th century)
- Leszko III - (8th century)
- Popiel I - (8th century)
- Popiel II - (9th century)
- Piast the Wheelwright (Piast Kołodziej) - (9th century)
Duchy of Greater Poland
Duchy of Poland
- Mieszko I - (960 - 992)
- Bolesław I the Brave (Bolesław I Chrobry) - (992 - 1025)
- Mieszko II Lambert - (992 - 1025, 1032 - 1034)
- Bezprym - (1031 - 1032)
- Dytryk - (1032 - 1032)
- Otto Bolesławowic - (1032 - 1033)
- Bolesław the Forgotten (Bolesław Zapomniany) - (1034 - 1039)
- Casimir I the Restorer (Kazimierz I Odnowiciel) - (1032 - 1033)