feudal
Feudalism, also known as the feudal system, was a combination of legal, economic, military, cultural, and political customs that flourished in Middle Ages, medieval Europe from the 9th to 15th centuries. Broadly defined, it was a way of struc ...
Masovia
Mazovia or Masovia ( ) is a historical region in mid-north-eastern Poland. It spans the North European Plain, roughly between Łódź and Białystok, with Warsaw being the largest city and Płock being the capital of the region . Throughout the ...
Płock
Płock (pronounced ), officially the Ducal Capital City of Płock, is a city in central Poland, on the Vistula river, in the Masovian Voivodeship. According to the data provided by Central Statistical Office (Poland), GUS on 31 December 2021, the ...
. It existed in the
High Middle Ages
The High Middle Ages, or High Medieval Period, was the periodization, period of European history between and ; it was preceded by the Early Middle Ages and followed by the Late Middle Ages, which ended according to historiographical convention ...
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
The Duchy of Masovia was a District duchy, district principality and a fiefdom of the Kingdom of Poland (1025–1385), Kingdom of Poland, existing during the Middle Ages. The state was centered in Mazovia in the northeastern Kingdom of Poland, a ...
, with duke Bolesław II of Masovia becoming its ruler.Agnieszka Teterycz-Puzio, ''Bolesław II Mazowiecki'', p. 41-42. After his death, the duchy was unified with the Duchy of Czersk, forming the
Duchy of Masovia
The Duchy of Masovia was a District duchy, district principality and a fiefdom of the Kingdom of Poland (1025–1385), Kingdom of Poland, existing during the Middle Ages. The state was centered in Mazovia in the northeastern Kingdom of Poland, a ...
, 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 (; Latin: ''Regnum Poloniae'') was a monarchy in Central Europe during the Middle Ages, medieval period from 1025 until 1385.
Background
The West Slavs, West Slavic tribe of Polans (western), Polans who lived in what i ...
Duchy of Warsaw
The Duchy of Warsaw (; ; ), also known as the Grand Duchy of Warsaw and Napoleonic Poland, was a First French Empire, French client state established by Napoleon Bonaparte in 1807, during the Napoleonic Wars. It initially comprised the ethnical ...
.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 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.