The Duchy of Sieradz ( la, ducatus Siradiae, pl, Księstwo Sieradzkie), also known as the Duchy of Siradia, was one of the territories created during the period of the

fragmentation of Poland The period of rule by the Piast dynasty between the 10th and 14th centuries is the first major stage of the history of the Polish state. The dynasty was founded by a series of dukes listed by the chronicler Gall Anonymous in the early 12th cen ...

. It was originally part of the central

Seniorate Province Seniorate Province, also known as the Senioral Province, , was a district principality in the Duchy of Poland that was formed in 1138, following the fragmentation of the state. Its ruler held the title of the High Duke, ruling all duchies wit ...

, but became separated upon the death of High Duke

Władysław III Spindleshanks : ''This article refers to the 12th-century Polish monarch. For the 15th-century Jagiellon monarch, see Władysław III of Poland, and for other monarchs with similar names see Ladislaus III (disambiguation)''. Władysław III Spindleshanks ( pl, W ...

in 1231, ruled by the rivaling Masovian branch of the

Piast dynasty The House of Piast was the first historical ruling dynasty of Poland. The first documented Polish monarch was Duke Mieszko I (c. 930–992). The Piasts' royal rule in Poland ended in 1370 with the death of king Casimir III the Great. Branch ...

. In 1299 Duke

Władysław I the Elbow-high Władysław is a Polish given male name, cognate with Vladislav. The feminine form is Władysława, archaic forms are Włodzisław (male) and Włodzisława (female), and Wladislaw is a variation. These names may refer to: Famous people Mononym * ...

had to cede Sieradz to King

Wenceslaus II of Bohemia Wenceslaus II Přemyslid ( cs, Václav II.; pl, Wacław II Czeski; 27 SeptemberK. Charvátová, ''Václav II. Král český a polský'', Prague 2007, p. 18. 1271 – 21 June 1305) was King of Bohemia (1278–1305), Duke of Cracow (1291–1 ...

, who had also obtained the Seniorate Duchy of Kraków in 1291. Nevertheless, upon the extinction of the Bohemian

Přemyslid dynasty The Přemyslid dynasty or House of Přemyslid ( cs, Přemyslovci, german: Premysliden, pl, Przemyślidzi) was a Bohemian royal dynasty that reigned in the Duchy of Bohemia and later Kingdom of Bohemia and Margraviate of Moravia (9th century–1 ...

in 1306, it was reunited with 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 exi ...

as a vassal duchy, and after 1339 incorporated by King

Casimir III the Great Casimir III the Great ( pl, Kazimierz III Wielki; 30 April 1310 – 5 November 1370) reigned as the King of Poland from 1333 to 1370. He also later became King of Ruthenia in 1340, and fought to retain the title in the Galicia-Volhynia Wars. He ...

into the Lands of the Polish Crown as Sieradz Voivodship. Around that time, the term Sieradz Land (''terra Siradiensi'', ''

ziemia Land is a historical unit of administration in Poland and Ruthenia. In the Polish language, the term is not capitalization, capitalized (''ziemia chełmińska'', Chelmno Land; not ''Ziemia Chełmińska''). All ''ziemias'' are named after main urb ...

sieradzka'') begun replacing the older Duchy nomenclature. The importance of the territory is reflected in the Latin title of Polish kings: ''nec non terrarum Cracovie, Sandomirrie, Lancicie, Cuyavie, Syradziensis dux''.

Dukes of Sieradz

* 1231–1233

Konrad I of Masovia Konrad I of Masovia (ca. 1187/88 – 31 August 1247), from the Polish Piast dynasty, was the sixth Duke of Masovia and Kuyavia from 1194 until his death as well as High Duke of Poland from 1229 to 1232 and again from 1241 to 1243. Life Konrad wa ...

* 1233–1234 Boleslaus I of Masovia, son ** 1234–1247 Konrad I of Masovia, again ** 1247–1259

Casimir I of Kuyavia Casimir I of Kuyavia ( pl, Kazimierz I kujawski) (c. 1211 – 14 December 1267) was a Polish prince and a member of the House of Piast. He was Duke of Kujawy after 1233, ruler over Ląd from 1239-1261, ruler over Wyszogród after 1242, Duke of Si ...

, son, younger brother of Boleslaus ** 1259–1260

Siemowit I of Masovia Siemowit I of Masovia ( pl, Siemowit (Ziemowit) I mazowiecki) (d. 23 June 1262), was a Polish prince member of the House of Piast, Duke of Czersk during 1247-1248, Duke of Masovia (except Dobrzyń) during 1248-1262, ruler over Sieradz during 1259 ...

, younger brother of Casimir ** 1260–1261 Casimir I of Kuyavia, again * 1261–1288

Leszek II the Black Leszek II the Black (c. 1241 – 30 September 1288), was a Polish prince of the House of Piast, Duke of Sieradz since 1261, Duke of Łęczyca since 1267, Duke of Inowrocław in the years 1273-1278, Duke of Sandomierz and High Duke of Poland from ...

, son of Casimir, also Duke of Kraków from 1279 ** 1288–1299

, younger half-brother, Duke of Kraków from 1306,

King of Poland Poland was ruled at various times either by dukes and princes (10th to 14th centuries) or by kings (11th to 18th centuries). During the latter period, a tradition of free election of monarchs made it a uniquely electable position in Europe (16th ...

from 1320 * 1299–1305 King

, Duke of Kraków from 1291,

from 1300 * 1305–1306 King

Wenceslaus III of Bohemia Wenceslaus III ( cz, Václav III., hu, Vencel, pl, Wacław, hr, Vjenceslav, sk, Václav; 6 October 12894 August 1306) was King of Hungary and Croatia between 1301 and 1305, and King of Bohemia and Poland from 1305. He was the son of Wencesla ...

, also King of Poland **1306–1327 Władysław I the Elbow-high, again, also Duke of Kraków from 1306, King of Poland from 1320 * 1327–1339

Przemysł of Inowrocław Przemysł of Inowrocław (pl: ''Przemysł inowrocławski''; ca. 1278 – November 1338/16 February 1339), was a Polish prince member of the House of Piast, Duke of Inowrocław during 1287-1314 (under the regency of his mother until 1294 and his br ...

, son of Duke

Ziemomysł of Kuyavia Ziemomysł of Inowrocław ( pl, Ziemomysł inowrocławski; c. 1245 – October/24 December 1287), was a Polish prince, member of the House of Piast, duke of Inowrocław during 1267-1271 and 1278–1287, and ruler over Bydgoszcz during 1267-1269 ...

References

{{DEFAULTSORT:Sieradz, Duchy of

Duchy of Sieradz The Duchy of Sieradz ( la, ducatus Siradiae, pl, Księstwo Sieradzkie), also known as the Duchy of Siradia, was one of the territories created during the period of the fragmentation of Poland. It was originally part of the central Seniorate Provi ...

14th-century disestablishments in Poland History of Poland during the Piast dynasty Duchies of Poland States and territories established in 1231 Fiefdoms of Poland