•
Bydgoszcz, established in 2004 •
Włocławek, established about 1015 (split off
Kołobrzeg as Diocese of Kujawy–Pomorze), interrupted 1818–1925 (then suffragan of
Warsaw as Diocese of Kujawy–Kalisz)
Former suffragans •
Diocese of Krakow, 1000–1807, became suffragan of
Lwów (Lviv), suffragan of Warsaw from 1818 to 1880, raised to archbishopric in 1925 •
Diocese of Wrocław, 1000–1821 (exempt), raised to archbishopric in 1930 •
Diocese of Kołobrzeg, 1000–1007 (Bishop
Reinbern), re-established as suffragan diocese of Koszalin-Kołobrzeg in 1972, became suffragan of
Szczecin-Kamień in 1992 •
Diocese of Poznań, 1075–1821, raised to archbishopric, in personal union with Gniezno until 1946 •
Diocese of Płock, 1075–1818, suffragan of Warsaw •
Diocese of Lubusz (Lebus), established about 1125, suffragan of
Magdeburg from 1424, secularised in 1598 •
Diocese of Vilnius, 1388–1798, raised to archbishopric in 1926 •
Diocese of Samogitia, established in 1427, dissolved in 1798, re-established in 1849, raised to archbishopric (Archdiocese of
Kaunas) in 1926 •
Diocese of Warsaw, 1798-1813, raised to archbishopric, in personal union with Gniezno 1946-1992 •
Diocese of Chełmno, 1821–1992, de facto already joining Gniezno councils since 1566, replaced by the
Diocese of Pelplin, suffragan of
Gdańsk (see below) •
Diocese of Łuck (Lutsk), 16th century, united with
Diocese of Kyiv–Černihiv in 1798 •
Diocese of Inflanty (Wenden), 1621–1798 •
Diocese of Smolensk, 1636–1783, merged into
Archdiocese of Mohilev in 1818 •
Diocese of Gdańsk, established in 1925 (exempt), suffragan of Gniezno from 1972, raised to archbishopric in 1992 •
Diocese of Szczecin-Kamień, established in 1972, raised to archbishopric in 1992 ==See also==