Duchy of Masovia

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Fragmentation of Poland betweens the sons of Bolesław:      The Seniorate Province, composed of the Eastern Greater Poland, Lesser Poland, Western Kuyavia, Łęczyca Land and Sieradz Land      Silesian Province of Władysław II      Masovian Province of Bolesław IV      Greater Poland Province of Mieszko III      Sandomir Province of Henryk      Province of Bolesław's widow, Salomea, composed of Łęczyca Land - to revert to seniorate province upon her death      Pomeranian vassals of the ruler of the seniorate province
Fragmentation of Poland betweens the sons of Bolesław:      The Seniorate Province, composed of the Eastern Greater Poland, Lesser Poland, Western Kuyavia, Łęczyca Land and Sieradz Land      Silesian Province of Władysław II      Masovian Province of Bolesław IV      Greater Poland Province of Mieszko III      Sandomir Province of Henryk      Province of Bolesław's widow, Salomea, composed of Łęczyca Land - to revert to seniorate province upon her death      Pomeranian vassals of the ruler of the seniorate province

The Duchy of Masovia (Polish: Księstwo Mazowieckie) was a duchy formed when the Kingdom of Poland fragmented in 1138. It was incorporated into the Polish kingdom in 1526.

[edit] History

Following the death of Bolesław III Wrymouth in 1138, as specified by his testament, Masovia was governed by his son Bolesław IV, the later high-duke of Poland, and other dukes of Masovia from the local branch of the Piast dynasty.

Among the dukes of Masovia, Bolesław IV the Curly was High Duke of Poland from 1146-77, while Konrad I was High Duke from 1229-32 and 1241-43; Konrad I was the ruler who called the Teutonic Order for help against the pagan Old Prussians. When the Polish kingdom was restored in 1295 by the coronation of Przemysł II, the Duchy of Masovia remained independent. In 1351 the dukes of Masovia became vassals of the Polish kings, while the Bishopric of Płock was always part of the Polish Archdiocese of Gniezno. Since the Polish-Lithuanian Union of 1385, it was localized between the joined Jagiellonian states. After the death of the last Masovian Piast, Janusz III, in 1526, Masovia became a voivodeship of the Kingdom of Poland.

The region of Masuria in neighboring eastern Prussia was largely populated by colonists from Masovia.

Divisions inside the Duchy
Divisions inside the Duchy
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Coat of arms of Kingdom of Poland Fiefs of the Polish Kingdom
Fiefs of the Crown of the Polish Kingdom
Common with Grand Duchy of Lithuania
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