Siemomysł or Ziemomysł (died ) was the third duke of

Polans Polans may refer to two Slavic tribes: * Polans (eastern) The Polans (, ''Poliany'', ''Polyane'', pl, Polanie), also Polianians, were an East Slavic tribe between the 6th and the 9th century, which inhabited both sides of the Dnieper river ...

of the

Piast The House of Piast was the first historical ruling dynasty of Poland. The first documented List of Polish monarchs, Polish monarch was Duke Mieszko I of Poland, Mieszko I (c. 930–992). The Poland during the Piast dynasty, Piasts' royal rule i ...

dynasty, and the father of

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populous ...

's first Christian ruler,

Mieszko I Mieszko I (; – 25 May 992) was the first ruler of Poland and the founder of the first independent Polish state, the Duchy of Poland. His reign stretched from 960 to his death and he was a member of the Piast dynasty, a son of Siemomysł and ...

. He was listed by

Gallus Anonymous ''Gallus Anonymus'' ( Polonized variant: ''Gall '') is the name traditionally given to the anonymous author of ''Gesta principum Polonorum'' (Deeds of the Princes of the Poles), composed in Latin between 1112 and 1118. ''Gallus'' is generally rega ...

in his ''

Gesta principum Polonorum The ''Gesta principum Polonorum'' (; "''Deeds of the Princes of the Poles''") is the oldest known medieval chronicle documenting the history of Poland from the legendary times until 1113. Written in Latin by an anonymous author, it was most lik ...

'' and was the son of

Lestek Lestek (also Leszek, Lestko) was the second duke of Polans, and son of Siemowit, born c. 870–880, mentioned in the oldest Polish chronicle, ''Gesta principum Polonorum'' by Gallus Anonimus. The dukes of Polans were the foundation of the Piast d ...

, the second known Duke of the Polans. According to Gallus' account and historical research, Siemomysł has been credited with leaving the lands of the Polans,

Goplans The Goplans or Goplanes ( la, Glopeani, pl, Goplanie) was an early West Slavic tribe that inhabited the central parts of the Kujawy region, with their probable seat at Kruszwica. They might have been named after the Lake Gopło; Kmietowicz belie ...

and

Masovians Masovians, also spelled as Mazovians, and historically known as Masurians, is an ethnographic group of Polish people that originate from the region of Masovia, located mostly within borders of the Masovian Voivodeship, Poland. They speak the Masov ...

to his son

, who further expanded them during his reign. According to modern Polish historian

Henryk Łowmiański Henryk Łowmiański (August 22, 1898 near Ukmergė - September 4, 1984 in Poznań) was a Polish historian and academic who was an authority on the early history of the Slavic and Baltic people. A researcher of the ancient history of Poland, Lithu ...

, Siemomysł aided the

Ukrani 250px, ''Burgwallinsel'', a former Ukrian Oberuckersee.html"_;"title="burgh_on_an_isle_in_Lake_Oberuckersee">burgh_on_an_isle_in_Lake_Oberuckersee_ The_Ukrani_or_UkriansOberuckersee.html"_;"title="burgh_on_an_isle_in_Lake_Oberuckersee">burgh_o ...

uprising against the Germans in 954 AD. He supposedly reigned from around 930 (although some historians believe that he reigned from around 950). Siemomysł united the lands of Polanie,

Goplanie The Goplans or Goplanes ( la, Glopeani, pl, Goplanie) was an early West Slavic tribe that inhabited the central parts of the Kujawy region, with their probable seat at Kruszwica. They might have been named after the Lake Gopło; Kmietowicz believ ...

, and

Mazowszanie Masovians, also spelled as Mazovians, and historically known as Masurians, is an ethnographic group of Polish people that originate from the region of Masovia, located mostly within borders of the Masovian Voivodeship, Poland. They speak the Masov ...

(however, some historians think that perhaps his father did it first). His burial place is unknown. Siemomysł's wife (or wives) is unknown. There is a theory that the daughter of Włodzisław, prince of the Lędzianie tribe, could have been Siemomysł's wife, but there is no historical evidence to support this. Formerly it was thought that his wife was named Gorka, but

Oswald Balzer Oswald Marian Balzer (23 January 1858 in Chodorów – 11 January 1933 in Lwów) was a Polish historian of law and statehood, one of the most renowned Polish historians of his times. In 1887 he became a professor at the University of Lwów. B ...

refuted this view in 1895.

and

Czcibor Czcibor ( la, Cidebur; died after 972), a member of the Piast dynasty, was a Polan prince, son of Duke Siemomysł and younger brother of the first Christian ruler, Mieszko I of Poland. Life According to E. Rymar (2005), Czcibor may have been ...

were his sons.

References

{{DEFAULTSORT:Siemomysl 10th-century Polish monarchs Piast dynasty Slavic pagans 10th-century deaths Year of birth uncertain Year of death uncertain

See also

References