Isabella Jagiellon
| Isabella Jagiellon | |
|---|---|
![]() Portrait by Lucas Cranach the Younger, 1553 | |
| Queen consort of Transylvania | |
| Reign | 23 February 1539-22 July 1540 |
| Coronation | Székesfehérvár, Transylvania |
| Successor | Anna Jagiellon in 1576 |
| Born | 18 January 1519 Kraków, Poland |
| Died | 15 September 1559 (aged 40) Gyulafehérvár, Transylvania |
| Burial | St. Michael's Cathedral, Alba Iuli |
| Spouse | John I of Transylvania (m.1539-1540) |
| Issue | John II Sigismund |
| House | Jagiellon dynasty |
| Father | Sigismund the Old |
| Mother | Bona Sforza |
Isabella Jagiellon (Hungarian: Izabella királyné; Polish: Izabela Jagiellonka; Lithuanian: Izabelė Jogailaitė) 18 January 1519 – 15 September 1559 was born in Kraków as the oldest child of Sigismund the Old and his second wife Bona Sforza. In 1539, she married John I of Transylvania, at the time Ferdinand I of Bohemia claimed Transylvania, John I died a year later from Intracerebral hemorrhage, 2 weeks before Zápolya died, Isabella gave birth to John II Sigismund, she spent the rest of her life embroiled in succession disputes on behalf of her son.
