Jan IV of O%C5%9Bwi%C4%99cim
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Jan IV of O%C5%9Bwi%C4%99cim

Jan IV
Duke of O?wi?cim, Gliwice
POL województwo opolskie COA.svg
Coat-of-arms of Upper Silesia (Opole, O?wi?cim, Gliwice, etc).
Born1426/1430
Diedby 21 February 1497
Noble familySilesian Piasts of Opole
Spouse(s)Katharina
Barbara of Karniów
Issue
FatherCasimir I of O?wi?cim
MotherAnna of ?aga?

Jan IV of O?wi?cim (Polish: Jan IV o?wi?cimski; 1426/1430 - by 21 February 1497), was a Duke of O?wi?cim during 1434-1456 (until 1445 with his brothers as co-rulers) and Duke of Gliwice from 1465 to 1482.

He was the third son of Duke Casimir I of O?wi?cim by his first wife Anna, daughter of Duke Henry VIII of ?aga?.

Life

At the time of his father's death in 1434 Jan IV was still a minor, so was placed under the care of his older brother Wenceslaus I.

In 1441, Wenceslaus I agreed to become a vassal of the King of Poland in exchange for the rights to govern the Duchy of Zator (it would be given to them in 1440 and in 1441 Wac?aw would officially become a vassal). This step was also followed by Jan IV and his brother Przemys?aw.

On 19 January 1445 was made the formal division of the Duchy between Casimir I's sons. Despite the fact that he was the youngest brother, Jan IV received O?wi?cim, the capital of the Duchy, and the towns of K?ty, ?ywiec and half of Gliwice.

Since the beginning of his reign Jan IV joined in adventurous politics with his Silesian cousin. One of his first decisions was not recognized the purchase of Siewierz by the Bishop of Kraków, Zbigniew Ole?nicki. This has led to increased tensions between him and the Polish nobles, even resulting in some border wars (common for that period in medieval Europe). The struggle for Siewierz lasted until 1447, when Jan IV finally accepted the ownership of the Bishop.

In 1448 it seemed that the Jan IV's anti-Polish politics were definitively ended when he signed a border agreement with Kingdom of Poland: however, soon their relations worsened. In 1452, and for unknown reasons, Duke Przemys?aw of Toszek attack Siewierz. The Polish troops, under the command of Piotr Szafraniec, used this as an excuse to attack Jan IV, and sieged his castle of Barwa?d. The Duke of O?wi?cim saved his lands only after the payment of 2,000 fines to Piotr Szafraniec. But Jan IV, after these humiliating conditions, refused to surrender, and with the plague over the Poland, he looted Polish borderlands, advanced over Lesser Poland and even approached Kraków, the Polish capital itself, on a daring raid.

The reaction of the Polish King wasn't long in coming. In 1453, a large Polish army under the command of the Starost Jan Szczekocki and the Chamberlain Jan Kuropatwa, invaded his Duchy in retribution. Unable to face the powerful Polish army, he was defeated and on 25 January he decided to capitulate. The Polish King gave him two choices: the vassalization or selling of the Duchy.

Despite his defeat, Jan IV didn't change his conduct and soon after he began the siege of O?wi?cim, then under the hands of Jan z Czy?owa. This expedition was unsuccessful, so Jan IV withdrew to the Wolek Castle, from where he conducted trips to the Lesser Poland area.

Eventually, Jan IV accepted that he had lost all chances for victory, and in 1454 he finally agreed to sell his Duchy to the Kingdom of Poland for 20,000 groszes. The sale was confirmed in the act of homage made by the Duchy on 19 March 1454, during the festivities for the King's marriage with Elisabeth of Austria. The Act came into force on 11 October 1456, when King Casimir IV promised to Jan IV the payment of 21,000 pieces of gold and 4,300 fines.

Jan IV briefly joined the Prussian Confederation army as a mercenary during the Thirteen Years' War (one of the Polish-Teutonic Wars). However, the Polish king, Casimir IV Jagiellon, delayed the payment of the promised amount in 1454 and he returned to his homeland with mercenaries and allies from Prussia and located his base of operations in My?lenice, and began his efforts to recover his lost Duchy. Eventually, on 26 June 1458 in Bytom, the Polish King decided to pay him fully to stop the troubles (at the end, the King only gave him 11,000 pieces of gold and he would finish the payment only in 1462) and Jan IV retired from My?lenice, who was burned by the Polish troops.

In 1460, after the death of Bolko V the Hussite, Duke of Opole, Jan IV tried to claim his domains, but was defeated by Bolko V's brother, Nicholas I.

In 1462, with money from the Polish King, he bought Gliwice with its castle from his brother Przemys?aw, as well as nearby Ujazd from the Bishopric of Wroc?aw and he became the Duke of Gliwice in 1465.

In 1471, Jan IV and his brother Przemys?aw supported the election of W?adys?aw Jagiellon as King of Bohemia, which resulted in the beginning of hostile relations with the other candidate for the throne, the Hungarian King Matthias Corvinus. On 27 February 1475 during a meeting in Racibórz, King Matthias arrested Jan IV, and only released him after he give up half of his lands and later. However, the King only secured the fidelity of Jan IV on 12 August 1479, when he paid homage to him in Olomouc.

In 1482, and for unknown reasons, Jan IV sold the rest of his lands in Gliwice; in 1484 he inherited Toszek after the death of his brother Przemys?aw, but almost immediately the land was confiscated by King Matthias, who claimed more dubious rights to them.

Little is known about Jan IV's last years. He probably retired to the Duchy of Karniów, inherited by his second wife in 1491. Jan IV died around 1496-1497 and was probably buried in Karniów.

Marriages and Issue

By 30 December 1465, Jan IV married firstly with certain Katharina, whose origins are unknown.

Around 1475, Jan IV married secondly with Barbara (b. 1445 - d. 27 April 1510), daughter of Duke Nicholas V of Karniów. She succeeded in 1491 as Duchess of Karniów. They had one daughter:

  1. Helena (b. 1478/80 - d. aft. 1524), married in 1492 to Baron George of Schellenberg.

Ancestry

References

  • (in Polish) Jan (Janusz) IV O?wi?cimski (Gliwicki) (genealogy, heraldics, timeline)
  • Cawley, Charles, SILESIA, Medieval Lands database, Foundation for Medieval Genealogy,[self-published source][better source needed]
  • Marek, Miroslav. "Complete Genealogy of the House of Piast". Genealogy.EU.[self-published source][better source needed]
  • Genealogical database by Herbert Stoyan

Further reading

  • Krzysztof Rafa? Prokop, Ksi?stwa o?wi?cimskie i zatorskie wobec Korony Polskiej w latach 1438-1513. Dzieje polityczne, Polska Akademia Umiej?tno?ci, Kraków 2002
  • Marcin Spórna, Piotr Wierzbicki, S?ownik w?adców Polski i pretendentów do tronu polskiego, Wydawnictwo Zielona Sowa, Kraków 2003
  • Stanis?aw Szczur, Krzysztof O?óg, Piastowie, Wydawnictwo Literackie, Kraków 1999
Jan IV of O?wi?cim
Born: between 1426 and 1430 Died: c. 21 February 1497
Regnal titles
Preceded by
Casimir I
Duke of O?wi?cim
with Wenceslaus I and Przemys?aw
(until 1445)

1434-1456
Succeeded by
Annexed by the
Kingdom of Bohemia
Preceded by
Przemys?aw
Duke of Toszek
1484
Preceded by
János Corvinus
Duke of Karniów
with Barbara

1491-1493
Succeeded by
Johann II of Schellenberg

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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