into two duchies of Sieradz and Łęczyca (below) 1294-1297 Ladislaus I the Short (Władysław Łokietek) 1297-1305 Wenceslaus II of Bohemia (Wacław II Czeski) After 1305, parts of the united Kingdom of Poland initially as two vassal duchies, later incorporated as Łęczyca Voivodeship and Sieradz Voivodeship. Dukes of Łęczyca 1233-1234 Konrad of Masovia (Konrad Mazowiecki) 1275-1294 Casimir II of Łęczyca (Kazimierz II) 1329-1343 Ladislaus of Dobrzyn (Władysław Dobrzyński) After 1305 part of the united Kingdom of Poland as a vassal duchy, later after 1343 incorporated by the king Casimir III the Great as the Łęczyca Voivodeship. Notable residents Jerzy I of Halicz Kazimierz II Janisław I Władysław I the Elbow-high Władysław II Jagiełło Władysław III of Poland Vytenis Zygmunt II August Agnieszka Baranowska Kazimierz Franciszek Czarnkowski Zygmunt Grudziński (1870-1929) Rabbi Shlomo Ephraim Luntschitz (Lenczyk) Rabbi Meïr Löb ben Jehiel Michel Weiser Malbi"m Wacław Przeździecki Jakub Świnka Stanisław Warszycki Marek Wojtera Józef Szczepański Stanisław Thugutt Twin towns – sister cities Łęczyca is twinned with four cities: Rillieux-la-Pape Penzlin, Germany Volodymyr, Ukraine Rypin, Poland See also Devil Boruta Dukes of Sieradz-Łęczyca Łęczyca (disambiguation) References External links Official website Cities and towns in Łódź Voivodeship Łęczyca County Kalisz Governorate Łódź Voivodeship (1919–1939) Shtetls