feudal
Feudalism, also known as the feudal system, was the combination of the legal, economic, military, cultural and political customs that flourished in Middle Ages, medieval Europe between the 9th and 15th centuries. Broadly defined, it was a wa ...
Masovia
Mazovia or Masovia ( pl, Mazowsze) is a historical region in mid-north-eastern Poland. It spans the North European Plain, roughly between Łódź and Białystok, with Warsaw being the unofficial capital and largest city. Throughout the centurie ...
Płock
Płock (pronounced ) is a city in central Poland, on the Vistula river, in the Masovian Voivodeship. According to the data provided by GUS on 31 December 2021, there were 116,962 inhabitants in the city. Its full ceremonial name, according to the ...
. It existed in the
High Middle Ages
The High Middle Ages, or High Medieval Period, was the periodization, period of European history that lasted from AD 1000 to 1300. The High Middle Ages were preceded by the Early Middle Ages and were followed by the Late Middle Ages, which ended ...
era, from 1275 to 1294, from 1310 to 1351, and from 1381 to 1462.
History
The country was established in 1275, in the partition of the
Duchy of Masovia
Duchy of Masovia was a district principality and a fiefdom of the Kingdom of Poland, existing during the Middle Ages. The state was centered in Mazovia in the northeastern Kingdom of Poland, and during its existence, its capital was located in ...
, with duke
Bolesław II of Masovia
Bolesław II of Masovia or Bolesław II of Płock (pl: ''Bolesław II mazowiecki (płocki)''; ca. 1253/58 – 20 April 1313), was a Polish prince, member of the House of Piast, Duke of Masovia during 1262-1275 jointly with his brother, after 12 ...
becoming its ruler.Agnieszka Teterycz-Puzio, ''Bolesław II Mazowiecki'', p. 41-42. After his death, the duchy was unified with the
Duchy of Czersk
The Duchy of Czersk was a feudal district duchy in Masovia, centered on the Czersk Land. Its capital was Czersk.
The country was established in 1275, in the partition of the Duchy of Masovia, with duke Konrad II becoming its ruler.Agnieszka Tet ...
, forming the
Duchy of Masovia
Duchy of Masovia was a district principality and a fiefdom of the Kingdom of Poland, existing during the Middle Ages. The state was centered in Mazovia in the northeastern Kingdom of Poland, and during its existence, its capital was located in ...
, on 24 June 1294. The state was again reestablished in 1310, in the partition of Duchy of Masovia. In 1351, it was partitioned between the
Kingdom of Poland
The Kingdom of Poland ( pl, Królestwo Polskie; Latin: ''Regnum Poloniae'') was a state in Central Europe. It may refer to:
Historical political entities
*Kingdom of Poland, a kingdom existing from 1025 to 1031
*Kingdom of Poland, a kingdom exist ...
,
Duchy of Czersk
The Duchy of Czersk was a feudal district duchy in Masovia, centered on the Czersk Land. Its capital was Czersk.
The country was established in 1275, in the partition of the Duchy of Masovia, with duke Konrad II becoming its ruler.Agnieszka Tet ...
, and
Duchy of Warsaw
The Duchy of Warsaw ( pl, Księstwo Warszawskie, french: Duché de Varsovie, german: Herzogtum Warschau), also known as the Grand Duchy of Warsaw and Napoleonic Poland, was a French client state established by Napoleon Bonaparte in 1807, during ...
.O. Balzer, ''Genealogia Piastów''.Jerzy Wyrozumski, ''Dzieje Polski piastowskiej (VIII w.-1370)''. It was again reestablished in June 1381, in the partition of the Duchy of Masovia, with duke
Siemowit IV
Siemowit IV (Ziemowit IV), also known as Siemowit IV the Younger (pl: ''Siemowit IV Młodszy''; ca. 1353/1356 – 21 January 1426), was a Polish prince member of the House of Piast from the Dukes of Masovia, Masovian branch, from 1373/74 Duke ...
as its first leader.Janusz Grabowski, ''Dynastia Piastów Mazowieckich'', p. 98.J. Krzyżaniakowa, J. Ochmański, ''Władysław II Jagiełło'', p. 315. It existed until 1462, when it got partitioned between the Kingdom of Poland, and the Duchy of Warsaw.