# Union of Lublin (1569)

URL: https://poland-history.com/timeline/1569-union-of-lublin
Location: Lublin
Categories: main-event

The Union of Lublin merged the Kingdom of Poland and the Grand Duchy of Lithuania into a single Commonwealth with a common monarch and Sejm. Podlachia, Volhynia and Kiev were transferred to the Crown. Within the broader Jagiellonian Age period: The union with Lithuania created one of Europe's largest states. Victory over the Teutonic Order, the rise of noble democracy and a brilliant Renaissance culture marked the Jagiellonian golden age. At this point in the timeline (1 July 1569), the governing authority was Sigismund II Augustus (King of Poland). Last male Jagiellon; oversaw the Union of Lublin that created the Polish–Lithuanian Commonwealth. Union of Lublin mattered because its terms redrew borders or alliances and constrained Poland's options for years to come. The event is placed here so readers can follow it alongside changes in government, warfare, society, religion and culture across Polish history.

## Why it matters
Union of Lublin mattered because its terms redrew borders or alliances and constrained Poland's options for years to come.

Ruler at the time: [Sigismund II Augustus](https://poland-history.com/rulers/sigismund-ii-augustus)

## Sources
- [Wikipedia — Union of Lublin](https://en.wikipedia.org/wiki/Union_of_Lublin)
- [Encyclopaedia Britannica topic lookup — Union of Lublin](https://www.britannica.com/search?query=Union+of+Lublin)
- [Wikipedia — Jagiellonian dynasty (period overview)](https://en.wikipedia.org/wiki/Jagiellonian_dynasty)