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Warta river in central Poland with 44,700 inhabitants (1995).
Situated in the Lodz Voivodship (since 1999), previously capital of Sieradz Voivodship (1975-1998).
Members of Parliament (Sejm) elected from Sieradz constituency
to be written yet
after 1305 parts of the united Kingdom of Poland initially as two vassal duhies, later incorporated as Leczyca Voivodship and Sieradz Voivodship.
After 1305 part of the united Kingdom of Poland as a vassal duchy, later after 1339 incorporated by the king Casimir III the Great as the Sieradz Voivodship
See also: Dukes of Sieradz-Leczyca