Duke of Sieradz-Łęczyca

(Redirected from Dukes of Sieradz-Leczyca)

From 1138 to 1228, part of the Duchy of Kraków and Sandomierz, belonging to the high-dukes of Poland.

Dukes of Sieradz-Łęczyca

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After 1305 parts of the united Kingdom of Poland initially as two vassal duchies, later incorporated as Łęczyca Voivodeship and Sieradz Voivodeship.

Dukes of Sieradz

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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 Voivodeship.

Dukes of Łęczyca

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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.