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

Sejm The Sejm (), officially known as the Sejm of the Republic of Poland (), is the lower house of the bicameralism, bicameral parliament of Poland. The Sejm has been the highest governing body of the Third Polish Republic since the Polish People' ...

, who in 1602 founded the

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

. 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 c ...

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

Siena Siena ( , ; traditionally spelled Sienna in English; ) is a city in Tuscany, in central Italy, and the capital of the province of Siena. It is the twelfth most populated city in the region by number of inhabitants, with a population of 52,991 ...

) but from

Oleśnica Oleśnica (; ) 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 Gmina Oleśnica, although it is not part ...

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

Sigismund III Vasa Sigismund III Vasa (, ; 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 from 1592 to 1599. He was the first Polish sovereign from the House of Vasa. Re ...

who was attempting to weaken the

and introduce a hereditary monarchy.

References

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