Sieradz is a city on the Warta river in central Poland with 40,891 inhabitants. It is the seat of the Sieradz County, situated in the Łódź Voivodeship. Sieradz is a capital of the historical Sieradz Land. Sieradz is one of the oldest cities in Poland. It was an important city of medieval Poland, thrice being a location for the election of the Polish monarchs. Polish Kings chaired six assemblies from here.