Jakub Sienieński (died 1639) was a Polish nobleman, representative in the

Sejm The Sejm (English: , Polish: ), officially known as the Sejm of the Republic of Poland ( Polish: ''Sejm Rzeczypospolitej Polskiej''), is the lower house of the bicameral parliament of Poland. The Sejm has been the highest governing body of ...

, who in 1602 founded the

Racovian Academy The Racovian Academy ('' la, Gymnasium Bonarum Artium'') was a Socinian school operated from 1602 to 1638 by the Polish Brethren in Raków, Sandomierz Voivodeship of Lesser Poland. The communitarian Arian settlement of Raków was founded in 1569 ...

. His father Jan Sienieński (d. 1599) founded the town of

Raków, Kielce County Raków is a village in Kielce County, Świętokrzyskie Voivodeship, in south-central Poland. It is the seat of the gmina (administrative district) called Gmina Raków. It lies in historic Lesser Poland, approximately south-east of the regional ...

in 1569. The family name, also written "z Sienny", is not of Italian descent (from

Siena Siena ( , ; lat, Sena Iulia) is a city in Tuscany, Italy. It is the capital of the province of Siena. The city is historically linked to commercial and banking activities, having been a major banking center until the 13th and 14th centur ...

) but from

Oleśnica Oleśnica (pronounced ; german: Oels; szl, Ôleśnica) is a town in Lower Silesian Voivodeship, in south-western Poland, within the Wrocław metropolitan area. It is the administrative seat of Oleśnica County and also of the rural district of ...

. In 1606-1609 Jakub supported the Zebrzydowski Rebellion against King

Sigismund III Vasa Sigismund III Vasa ( pl, Zygmunt III Waza, lt, Žygimantas Vaza; 20 June 1566 – 30 April 1632 N.S.) was King of Poland and Grand Duke of Lithuania from 1587 to 1632 and, as Sigismund, King of Sweden and Grand Duke of Finland from 1592 to ...

who was attempting to weaken the

and introduce a hereditary monarchy.

References

16th-century births 1639 deaths Polish Unitarians {{Poland-noble-stub