35:
204:. 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.
219:. The Duke of Oświęcim 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
317:, 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 Myślenice, who was burned by the Polish troops.
366:, 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
244:, 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
1520:
211:: however, soon their relations worsened. In 1452, and for unknown reasons, Duke Przemysław of Toszek attack Siewierz. The Polish troops, under the command of
192:
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
266:
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
177:
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
212:
377:
after the death of his brother
Przemysław, but almost immediately the land was confiscated by King Matthias, who claimed more dubious rights to them.
256:
234:
241:
260:
170:(it would be given to them in 1440 and in 1441 Wacław would officially become a vassal). This step was also followed by Jan IV and his brother
216:
1368:
270:. 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
481:
290:
351:
207:
In 1448 it seemed that the Jan IV's anti-Polish politics were definitively ended when he signed a border agreement with
305:, delayed the payment of the promised amount in 1454 and he returned to his homeland with mercenaries and allies from
155:
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
208:
358:, which resulted in the beginning of hostile relations with the other candidate for the throne, the Hungarian King
201:
1553:
271:
536:
230:
The reaction of the Polish King wasn't long in coming. In 1453, a large Polish army under the command of the
384:, inherited by his second wife in 1491. Jan IV died around 1496–1497 and was probably buried in Karniów.
1445:
653:
455:
140:
99:
1548:
400:
373:
In 1482, and for unknown reasons, Jan IV sold the rest of his lands in
Gliwice; in 1484 he inherited
340:
1201:
407:
89:
1480:
171:
1558:
1169:
992:
627:
392:
By 30 December 1465, Jan IV married firstly with certain
Katharina, whose origins are unknown.
282:
144:
1028:
1538:
1382:
Księstwa oświęcimskie i zatorskie wobec Korony
Polskiej w latach 1438–1513. Dzieje polityczne
911:
156:
396:
79:
1543:
302:
275:
238:
572:
344:
251:
Despite his defeat, Jan IV didn't change his conduct and soon after he began the siege of
8:
329:
321:
294:
197:
1470:
1143:
359:
336:
1499:
34:
1506:
1487:
1452:
1361:
313:, and began his efforts to recover his lost Duchy. Eventually, on 26 June 1458 in
937:
355:
119:
66:
1410:
380:
Little is known about Jan IV's last years. He probably retired to the Duchy of
167:
163:
1532:
252:
220:
178:
129:
328:, Jan IV tried to claim his domains, but was defeated by Bolko V's brother,
1260:
411:
310:
298:
278:
promised to Jan IV the payment of 21,000 pieces of gold and 4,300 fines.
132:
during 1434–1456 (until 1445 with his brothers as co-rulers) and Duke of
363:
403:. She succeeded in 1491 as Duchess of Karniów. They had one daughter:
1264:
350:
In 1471, Jan IV and his brother
Przemysław supported the election of
286:
224:
215:, used this as an excuse to attack Jan IV, and sieged his castle of
186:
267:
193:
61:
1353:
367:
335:
In 1462, with money from the Polish King, he bought
Gliwice with
306:
231:
133:
410:(b. 1478/80 – d. aft. 1524), married in 1492 to Baron George of
182:
374:
245:
259:. This expedition was unsuccessful, so Jan IV withdrew to the
39:
Coat-of-arms of Upper
Silesia (Opole, Oświęcim, Gliwice, etc).
381:
325:
314:
263:, from where he conducted trips to the Lesser Poland area.
1389:
Słownik władców Polski i pretendentów do tronu polskiego
162:
In 1441, Wenceslaus I agreed to become a vassal of the
274:. The Act came into force on 11 October 1456, when
128:; 1426/1430 – by 21 February 1497), was a Duke of
1530:
399:(b. 1445 – d. 27 April 1510), daughter of Duke
339:from his brother Przemysław, as well as nearby
227:, the Polish capital itself, on a daring raid.
181:, the capital of the Duchy, and the towns of
1384:, Polska Akademia Umiejętności, Kraków 2002
1263:or Nicolae Alexandru Bassaraba, Voivode of
347:and he became the Duke of Gliwice in 1465.
1362:"Complete Genealogy of the House of Piast"
395:Around 1475, Jan IV married secondly with
362:. On 27 February 1475 during a meeting in
166:in exchange for the rights to govern the
143:by his first wife Anna, daughter of Duke
1391:, Wydawnictwo Zielona Sowa, Kraków 2003
1369:Genealogical database by Herbert Stoyan
1531:
1354:Jan (Janusz) IV Oświęcimski (Gliwicki)
1123:
1119:
1107:
1008:
891:
887:
883:
873:
777:
673:
669:
657:
552:
445:
441:
437:
387:
309:and located his base of operations in
1398:, Wydawnictwo Literackie, Kraków 1999
1291:
1288:
1278:
1258:
1248:
1244:
1240:
1228:
1225:
1215:
1199:
1189:
1185:
1173:
1167:
1157:
1141:
1131:
1127:
1104:
1094:
1081:
1071:
1067:
1055:
1052:
1042:
1026:
1016:
1012:
996:
990:
980:
967:
957:
953:
941:
935:
925:
909:
899:
895:
867:
857:
845:
835:
831:
819:
817:
807:
795:
785:
781:
765:
763:
753:
741:
731:
727:
715:
713:
703:
691:
681:
677:
651:
641:
625:
615:
611:
599:
596:
586:
570:
560:
556:
540:
534:
524:
511:
501:
497:
485:
482:Przemyslaus I Noszak, Duke of Cieszyn
479:
469:
453:
449:
968:25. Matilda of Brandenburg-Salzwedel
13:
1394:Stanisław Szczur, Krzysztof Ożóg,
1374:
14:
1570:
1387:Marcin Spórna, Piotr Wierzbicki,
1359:
1457:with Wenceslaus I and Przemysław
1356:(genealogy, heraldics, timeline)
33:
427:Ancestors of Jan IV of Oświęcim
1259:30. András Lackfi, Voivode of
1:
1426:
1344:
512:17. Euphemia of Czersk-Warsaw
139:He was the third son of Duke
320:In 1460, after the death of
7:
597:9. Elisabeth of Koźle-Bytom
418:
10:
1575:
1121:
1113:
1082:27. Elisabeth of Lithuania
1002:
889:
885:
771:
671:
663:
546:
456:Casimir I, Duke of Cieszyn
443:
439:
281:Jan IV briefly joined the
255:, then under the hands of
1521:Johann II of Schellenberg
1517:
1504:
1496:
1485:
1477:
1465:
1450:
1442:
1437:
1404:
1272:
1246:
1242:
1234:
1209:
1187:
1179:
1151:
1129:
1125:
1088:
1069:
1061:
1036:
1014:
1010:
974:
955:
947:
919:
897:
893:
851:
833:
825:
801:
783:
779:
747:
729:
721:
697:
679:
675:
635:
613:
605:
580:
558:
554:
518:
499:
491:
463:
447:
248:or selling of the Duchy.
105:
95:
85:
73:
60:
52:
44:
32:
28:Duke of Oświęcim, Gliwice
27:
20:
1380:Krzysztof Rafał Prokop,
150:
1554:Polish Roman Catholics
1170:Vladislaus II of Opole
993:Henry VIII the Sparrow
628:Margareta of Sternberg
537:Przemysław of Oświęcim
283:Prussian Confederation
123:
1419:between 1426 and 1430
1226:7. Katharina of Opole
1202:Elisabeth of Świdnica
912:Henry IV the Faithful
654:Casimir I of Oświęcim
401:Nicholas V of Karniów
189:and half of Gliwice.
141:Casimir I of Oświęcim
100:Casimir I of Oświęcim
345:Bishopric of Wrocław
303:Casimir IV Jagiellon
295:Polish-Teutonic Wars
272:Elisabeth of Austria
223:and even approached
1406:Jan IV of Oświęcim
1029:Wenceslaus of Płock
388:Marriages and Issue
352:Władysław Jagiellon
322:Bolko V the Hussite
291:Thirteen Years' War
145:Henry VIII of Żagań
136:from 1465 to 1482.
56:by 21 February 1497
1471:Kingdom of Bohemia
1430: 21 February
870:Jan IV of Oświęcim
202:Zbigniew Oleśnicki
125:Jan IV oświęcimski
116:Jan IV of Oświęcim
90:Helena of Oświęcim
80:Barbara of Karniów
1527:
1526:
1518:Succeeded by
1466:Succeeded by
1360:Marek, Miroslav.
1341:
1340:
1337:
1336:
1144:Bolko II of Opole
1053:13. Anna of Płock
573:Bolesław of Bytom
360:Matthias Corvinus
209:Kingdom of Poland
113:
112:
1566:
1549:Dukes of Silesia
1497:Preceded by
1478:Preceded by
1453:Duke of Oświęcim
1443:Preceded by
1433:
1431:
1428:
1420:
1402:
1401:
1365:
1352:
1105:3. Anna of Żagań
433:
432:
424:
423:
297:). However, the
213:Piotr Szafraniec
198:Bishop of Kraków
37:
18:
17:
1574:
1573:
1569:
1568:
1567:
1565:
1564:
1563:
1529:
1528:
1523:
1514:
1509:
1507:Duke of Karniów
1502:
1491:
1483:
1473:
1469:
1462:
1458:
1455:
1448:
1429:
1421:
1415:
1414:
1407:
1377:
1375:Further reading
1364:. Genealogy.EU.
1350:
1347:
1342:
938:Henry V of Iron
421:
390:
356:King of Bohemia
276:King Casimir IV
153:
78:
67:Silesian Piasts
40:
23:
12:
11:
5:
1572:
1562:
1561:
1556:
1551:
1546:
1541:
1525:
1524:
1519:
1516:
1503:
1500:János Corvinus
1498:
1494:
1493:
1488:Duke of Toszek
1484:
1479:
1475:
1474:
1468:Annexed by the
1467:
1464:
1449:
1444:
1440:
1439:
1438:Regnal titles
1435:
1434:
1411:House of Piast
1408:
1405:
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989:
986:
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918:
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429:
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422:
420:
417:
416:
415:
389:
386:
235:Jan Szczekocki
168:Duchy of Zator
164:King of Poland
152:
149:
111:
110:
107:
103:
102:
97:
93:
92:
87:
83:
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75:
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64:
58:
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54:
50:
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42:
41:
38:
30:
29:
25:
24:
21:
9:
6:
4:
3:
2:
1571:
1560:
1559:Piast dynasty
1557:
1555:
1552:
1550:
1547:
1545:
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1537:
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1522:
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1363:
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1321:
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1315:
1313:
1311:
1309:
1307:
1305:
1303:
1301:
1300:
1297:
1295:
1294:
1289:15. Elisabeth
1286:
1285:
1282:
1281:
1276:
1275:
1270:
1269:
1266:
1262:
1256:
1255:
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881:
880:
877:
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871:
865:
864:
861:
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843:
842:
839:
838:
829:
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823:
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689:
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629:
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594:
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584:
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257:Jan z Czyżowa
254:
249:
247:
246:vassalization
243:
242:Jan Kuropatwa
240:
236:
233:
228:
226:
222:
221:Lesser Poland
218:
214:
210:
205:
203:
199:
195:
190:
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184:
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173:
169:
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158:
148:
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137:
135:
131:
127:
126:
121:
117:
109:Anna of Żagań
108:
104:
101:
98:
94:
91:
88:
84:
81:
76:
72:
68:
65:
63:
59:
55:
51:
47:
43:
36:
31:
26:
19:
16:
1539:1420s births
1511:with Barbara
1510:
1505:
1486:
1459:(until 1445)
1456:
1451:
1423:
1416:
1409:
1395:
1388:
1381:
1261:Transylvania
869:
412:Schellenberg
394:
391:
379:
372:
349:
334:
319:
293:(one of the
280:
265:
261:Wolek Castle
250:
229:
206:
191:
176:
161:
157:Wenceslaus I
154:
138:
124:
115:
114:
62:Noble family
15:
1544:1496 deaths
1351:(in Polish)
299:Polish king
289:during the
239:Chamberlain
1533:Categories
1515:1491–1493
1481:Przemysław
1463:1434–1456
1345:References
337:its castle
330:Nicholas I
324:, Duke of
285:army as a
172:Przemysław
1446:Casimir I
1396:Piastowie
1265:Wallachia
343:from the
311:Myślenice
287:mercenary
77:Katharina
74:Spouse(s)
48:1426/1430
419:Ancestry
364:Racibórz
253:Oświęcim
237:and the
194:Siewierz
179:Oświęcim
130:Oświęcim
69:of Opole
397:Barbara
382:Karniów
368:Olomouc
307:Prussia
268:groszes
232:Starost
217:Barwałd
196:by the
134:Gliwice
1422:
408:Helena
375:Toszek
225:Kraków
187:Żywiec
120:Polish
106:Mother
96:Father
22:Jan IV
1492:1484
1424:Died:
1417:Born:
341:Ujazd
326:Opole
315:Bytom
86:Issue
1432:1497
1200:29.
1168:14.
1142:28.
1027:26.
936:12.
910:24.
626:19.
571:18.
454:16.
183:Kęty
151:Life
53:Died
45:Born
991:6.
868:1.
652:2.
535:4.
480:8.
354:as
1535::
1427:c.
370:.
332:.
301:,
200:,
185:,
174:.
159:.
147:.
122::
414:.
118:(
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