Seniorate Province, also known as the Senioral Province, was a
district principality in the
Duchy of Poland
Civitas Schinesghe (; ), also known as the Duchy of Poland or the Principality of Poland, is the historiographical name given to a polity in Central Europe, which existed during the medieval period and was the predecessor state of the Kingdom of ...
that was formed in 1138, following the
fragmentation of the state.
[Kwiatkowski, Richard. ]
The Country That Refused to Die: The Story of the People of Poland
'. Xlibris Corporation, 2016. Its ruler held the title of the High Duke, ruling all duchies within Poland. In 1227, following the abolition of the High Duke title, the province was transformed into the
Duchy of Kraków
Duchy of Kraków was a duchy in Lesser Poland that existed from 1227 until 1300. Its capital was Kraków. It was formed in 1227 from the Seniorate Province, following the abolishment of the Duchy of Poland. It remained independent until 1300, wh ...
.
Senioral principle
The senioral principle established in the testament stated that at all times the eldest member of the dynasty was to have supreme power over the rest (''Dux'', the Dukes) and was also to control an indivisible "Seniorate Province". In 1138 Bolesław's III eldest son
Władysław II, took up the rule over a vast strip of land running north–south down the middle of Poland, composed of:
*
Lesser Poland
Lesser Poland, often known by its Polish name ''Małopolska'' (; ), is a historical region situated in southern and south-eastern Poland. Its capital and largest city is Kraków. Throughout centuries, Lesser Poland developed a separate cult ...
, except for the eastern Duchy of
Sandomierz
Sandomierz (pronounced: ; , ) is a historic town in south-eastern Poland with 23,863 inhabitants (), situated on the Vistula River near its confluence with the San, in the Sandomierz Basin. It has been part of Świętokrzyskie Voivodeship (Holy ...
allocated to Bolesław's III minor son
Henry
Henry may refer to:
People and fictional characters
* Henry (given name), including lists of people and fictional characters
* Henry (surname)
* Henry, a stage name of François-Louis Henry (1786–1855), French baritone
Arts and entertainmen ...
;
*eastern parts of
Greater Poland
Greater Poland, often known by its Polish name Wielkopolska (; ), is a Polish Polish historical regions, historical region of west-central Poland. Its chief and largest city is Poznań followed by Kalisz, the oldest city in Poland.
The bound ...
around
Gniezno
Gniezno (; ; ) is a city in central-western Poland, about east of Poznań. Its population in 2021 was 66,769, making it the sixth-largest city in the Greater Poland Voivodeship. The city is the administrative seat of Gniezno County (''powiat'') ...
, the Polish ecclesiastical center, and
Kalisz
Kalisz () is a city in central Poland, and the second-largest city in the Greater Poland Voivodeship, with 97,905 residents (December 2021). It is the capital city of the Kalisz Region. Situated on the Prosna river in the southeastern part of Gr ...
;
*western
Kuyavia
Kuyavia (; ), also referred to as Cuyavia, is a historical region in north-central Poland, situated on the left bank of Vistula, as well as east from Noteć River and Lake Gopło. It is divided into three traditional parts: north-western (with th ...
;
*the lands of
Łęczyca
Łęczyca (; in full the Royal Town of Łęczyca, ; ; ) is a town of inhabitants in central Poland. Situated in the Łódź Voivodeship, it is the county seat of the Łęczyca County. Łęczyca is a capital of the historical Łęczyca Land.
Or ...
, held by Bolesław's III widow
Salomea of Berg for life.
The High Duke resided at Kraków, Poland's capital since 1038. The Senior's prerogatives also included control over the
Duchy of Silesia
The Duchy of Silesia (, ) with its capital at Wrocław was a medieval provincial duchy of Poland located in the region of Silesia. Soon after it was formed under the Piast dynasty in 1138, it fragmented into various Silesian duchies. In 1327, t ...
and his
Pomerelia
Pomerelia, also known as Eastern Pomerania, Vistula Pomerania, and also before World War II as Polish Pomerania, is a historical sub-region of Pomerania on the southern shore of the Baltic Sea in northern Poland.
Gdańsk Pomerania is largely c ...
n vassals at
Gdańsk
Gdańsk is a city on the Baltic Sea, Baltic coast of northern Poland, and the capital of the Pomeranian Voivodeship. With a population of 486,492, Data for territorial unit 2261000. it is Poland's sixth-largest city and principal seaport. Gdań ...
in eastern
Pomerania
Pomerania ( ; ; ; ) is a historical region on the southern shore of the Baltic Sea in Central Europe, split between Poland and Germany. The central and eastern part belongs to the West Pomeranian Voivodeship, West Pomeranian, Pomeranian Voivod ...
. The Senior was tasked with defense of borders, the right to have troops in provinces of other Dukes, carrying out the foreign policy, supervision over the clergy (including the right to nominate bishops and archbishops), and minting the currency.
The High duke generally had his own principality (province, dukedom), which he had inherited within his own branch of the Piast dynasty, and left to his personal heirs within his own branch, whereas Kraków followed the seniorate (fell to the oldest of them). Kraków was a substantial addition to the resources of the incumbent, whoever it was, and was intended to put him higher in might than his vassal dukes.
However, the seniorate soon collapsed, with the first Senior - Władysław II the Exile - failing his bid to take over other provinces and in 1146 was expelled by his younger half-brothers, an incident which led to long-time Polish particularism.
History
The duchy neighboured originally each of the four partition duchies of
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 ...
at
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 ...
,
Sandomierz
Sandomierz (pronounced: ; , ) is a historic town in south-eastern Poland with 23,863 inhabitants (), situated on the Vistula River near its confluence with the San, in the Sandomierz Basin. It has been part of Świętokrzyskie Voivodeship (Holy ...
,
Silesia
Silesia (see names #Etymology, below) is a historical region of Central Europe that lies mostly within Poland, with small parts in the Czech Silesia, Czech Republic and Germany. Its area is approximately , and the population is estimated at 8, ...
at
Wrocław
Wrocław is a city in southwestern Poland, and the capital of the Lower Silesian Voivodeship. It is the largest city and historical capital of the region of Silesia. It lies on the banks of the Oder River in the Silesian Lowlands of Central Eu ...
and
Greater Poland
Greater Poland, often known by its Polish name Wielkopolska (; ), is a Polish Polish historical regions, historical region of west-central Poland. Its chief and largest city is Poznań followed by Kalisz, the oldest city in Poland.
The bound ...
at
Poznań
Poznań ( ) is a city on the Warta, River Warta in west Poland, within the Greater Poland region. The city is an important cultural and business center and one of Poland's most populous regions with many regional customs such as Saint John's ...
. Even after many of those were further partitioned, it bordered on several principalities, and was at least close to all.

Upon the exile of High Duke Władysław II the rule was assumed by Władysław's II eldest brother
Bolesław IV the Curly
Bolesław IV the Curly (; 1122 – 5 January 1173), a member of the Piast dynasty, was Duke of Masovia from 1138 and High Duke of Poland from 1146 until his death in 1173.
Early life
Bolesław was the third son of Duke Bolesław III Wrymouth ...
, Duke of Masovia, who died without issue in 1173. He was followed in the Seniorate by the second eldest
Mieszko III the Old
Mieszko III ( 1122/25 – 13 March 1202), sometimes called the Old, was Duke of Greater Poland from 1138 and High Duke of Poland, with interruptions, from 1173 until his death.
He was the fourth and second surviving son of Duke Bolesław III W ...
, while Masovia and the Kuyavian lands passed to Bolesław's IV minor son
Leszek
Leszek () is a Slavic Polish male given name, originally ''Lestko'', ''Leszko'' or ''Lestek'', related to ''Lech'', ''Lechosław'' and Czech ''Lstimir''.
Individuals named Leszek celebrate their name day on June 3.
Notable people bearing the ...
.
The senioral principle finally turned out to be a failure as Mieszko's III rule at Kraków was not only challenged by the sons of expelled Władysław II, but also by the youngest son
Casimir II the Just
Casimir II the Just (; 28 October 1138 – 5 May 1194) was a Lesser Polish Duke of Wiślica from 1166 to 1173, and of Sandomierz after 1173. He became ruler over the Polish Seniorate Province at Kraków and thereby High Duke of Poland in 1177; a ...
, who had not received any share by his late father's testament. Though upon the death of Bolesław IV the Curly he had received the Duchy of
Sandomierz
Sandomierz (pronounced: ; , ) is a historic town in south-eastern Poland with 23,863 inhabitants (), situated on the Vistula River near its confluence with the San, in the Sandomierz Basin. It has been part of Świętokrzyskie Voivodeship (Holy ...
, in 1177 he took the occasion of an uprising by Lesser Polish nobles (
magnate
The term magnate, from the late Latin ''magnas'', a great man, itself from Latin ''magnus'', "great", means a man from the higher nobility, a man who belongs to the high office-holders or a man in a high social position, by birth, wealth or ot ...
s) and assumed the rule as High Duke from his elder brother Mieszko III. A long-term struggle between the brothers followed, whereby Mieszko III was able to incorporate the northwestern lands of Gniezno and Kalisz into his Duchy of Greater Poland.
The Seniorate remained contested after Kraków was inherited by Casimir's II son
Leszek I the White
Leszek the White (; c. 1184/85 – 24 November 1227) was Prince of Sandomierz and High Duke of Poland in the years 1194–1198, 1199, 1206–1210, and 1211–1227. During the early stages of his reign, his uncle Duke Mieszko III the Old and cou ...
in 1194, still by his uncle Mieszko III (d. 1202), then by his younger brother
Konrad of Masovia
Konrad I of Masovia (ca. 1187/88 – 31 August 1247), from the Polish Piast dynasty, was the sixth Dukes of Masovia, Duke of Masovia and Kuyavia from 1194 until his death as well as List of Polish monarchs, High Duke of Poland from 1229 to 1232 and ...
, by his cousin, Mieszko's III son
Władysław III Spindleshanks
Władysław III Spindleshanks (; b. 1161/67 – 3 November 1231), of the Piast dynasty, was Duke of Greater Poland (during 1194–1202 over all the land and during 1202–1229 only over the southern part), High Duke of Poland and Duke of Kraków d ...
and also by the second son of Władysław II the Exile, Duke
Mieszko IV Tanglefoot
Mieszko IV Tanglefoot () (c. 1130 – 16 May 1211) was Duke of Kraków and High Duke of Poland from 9 June 1210 until his death one year later. He was also Duke of Silesia from 1163 to 1173 (with his brother as co-ruler), Duke of Racibórz fr ...
of Upper Silesia. In the long-term struggle Leszek I was killed in 1227 and the Pomerelian lands got lost, when Duke
Swietopelk II of Gdańsk declared himself independent.
List of Rulers
*
Władysław II the Exile
Władysław II the Exile (; 1105 – 30 May 1159) was the high duke of Poland and duke of Silesia from 1138 until his expulsion in 1146. He is the progenitor of the Silesian Piasts.
Governor of Silesia
He was the eldest son of Duke Bolesław III W ...
(1138–1146)
*
Bolesław IV the Curly
Bolesław IV the Curly (; 1122 – 5 January 1173), a member of the Piast dynasty, was Duke of Masovia from 1138 and High Duke of Poland from 1146 until his death in 1173.
Early life
Bolesław was the third son of Duke Bolesław III Wrymouth ...
(1146–1173)
*
Mieszko III the Old
Mieszko III ( 1122/25 – 13 March 1202), sometimes called the Old, was Duke of Greater Poland from 1138 and High Duke of Poland, with interruptions, from 1173 until his death.
He was the fourth and second surviving son of Duke Bolesław III W ...
(1173–1177)
*
Casimir II the Just
Casimir II the Just (; 28 October 1138 – 5 May 1194) was a Lesser Polish Duke of Wiślica from 1166 to 1173, and of Sandomierz after 1173. He became ruler over the Polish Seniorate Province at Kraków and thereby High Duke of Poland in 1177; a ...
(1191–1194)
*
Leszek the White
Leszek the White (; c. 1184/85 – 24 November 1227) was Prince of Sandomierz and High Duke of Poland in the years 1194–1198, 1199, 1206–1210, and 1211–1227. During the early stages of his reign, his uncle Duke Mieszko III the Old and ...
(1194–1198)
* Mieszko III the Old (1198–1199)
* Leszek the White (1199)
* Mieszko III the Old (1199–1202)
*
Władysław III Spindleshanks
Władysław III Spindleshanks (; b. 1161/67 – 3 November 1231), of the Piast dynasty, was Duke of Greater Poland (during 1194–1202 over all the land and during 1202–1229 only over the southern part), High Duke of Poland and Duke of Kraków d ...
(1202–1206/1210)
* Leszek the White (1206/1210–1210)
*
Mieszko IV Tanglefoot
Mieszko IV Tanglefoot () (c. 1130 – 16 May 1211) was Duke of Kraków and High Duke of Poland from 9 June 1210 until his death one year later. He was also Duke of Silesia from 1163 to 1173 (with his brother as co-ruler), Duke of Racibórz fr ...
(1210–1211)
* Leszek the White (1211–1225)
*
Henry the Bearded (1225)
* Leszek the White (1225–1227)
Notes
Bibliography
* ''Genealogia Piastów'' by 0. Balzer. Kraków. 1895.
*''Dzieje Polski piastowskiej (VIII w.-1370)'' by J. Wyrozumski. Kraków. "Fogra". 1999. ISBN 83-85719-38-5, OCLC 749221743.
References
{{reflist
Former countries in Europe
Former monarchies of Europe
Duchies of Poland
History of Poland during the Piast dynasty
Former administrative regions of Lesser Poland Voivodeship
12th-century establishments in Poland
13th-century disestablishments in Poland
States and territories established in 1138
States and territories disestablished in 1227
Fiefdoms of Poland