Birth of Sigismund II Augustus
Birth of Sigismund II Augustus, son of Sigismund I
Role range: 1548-1572
Historical biography archive · Updated 2026-11-03
Sigismund II Augustus Biography and Timeline
Follow Sigismund II Augustus through 23 dated historical records for Poland.
Sigismund II Augustus, historical timeline
A chronological timeline drawn from matching World History Database records.
23Distinct records
1 of 1Page
1520–1572Years on this page
1520
1530
Coronation
Crowned co-ruler with father Sigismund I
Role range: 1548-1572
1548
Succession
Succeeds as King of Poland
Role range: 1548-1572
1560
Baltic Policy
Sigismund II Augustus watches the Livonian crisis as a Baltic security threat
Role range: 1548-1572
Livonian Diplomacy
Poland-Lithuania increases involvement as Livonia collapses under Russian pressure
Role range: 1558-1583 – 1548-1572
1561
Union of Vilnius
Accepts Livonia under Polish Lithuanian protection after the Livonian Order collapses
Role range: 1548-1572
Pacta Subiectionis
Livonian estates accept Polish Lithuanian protection against Russia
Role range: 1548-1572
1562
Livonian Settlement
Sigismund consolidates Polish Lithuanian claims in Livonia
Role range: 1548-1572
1567
Constitution of Poland
Sigismund II Augustus signs the Act of Lublin
Role range: 1548-1572
Unification
Sigismund II Augustus signs the Act of Lublin
Role range: 1548-1572
Union of Lublin
Sigismund II Augustus signs the Act of Lublin
Role range: 1548-1572
Rule of Kiev
Orders the incorporation of southern Lithuanian-controlled lands of Podlachia, Volhynia, Podolia & Kiev regions
Role range: 1548-1572
Rule of Podlachia
Orders the incorporation of southern Lithuanian-controlled lands of Podlachia, Volhynia, Podolia & Kiev regions
Role range: 1548-1572
Rule of Podolia
Orders the incorporation of southern Lithuanian-controlled lands of Podlachia, Volhynia, Podolia & Kiev regions
Role range: 1548-1572
Rule of Volhynia
Orders the incorporation of southern Lithuanian-controlled lands of Podlachia, Volhynia, Podolia & Kiev regions
Role range: 1548-1572
Unification
Orders the incorporation of southern Lithuanian-controlled lands of Podlachia, Volhynia, Podolia & Kiev regions
Role range: 1548-1572
1569
Commonwealth
The Union of Lublin strengthens the Polishn Commonwealth by uniting Poland & Lithuania. The Commonwealth is ruled by an elected monarch carrying out the duties of Polish King & Grand Duke of Lithuania
Role range: 1548-1572
Constitution of Poland
Under the Union of Lublin the Monarch will govern with a common Senate and Parliament (the Sejm). The Commonwealth is ruled by an elected monarch carrying out the duties of Polish King & Grand Duke of Lithuania
Role range: 1548-1572
Union of Lublin
Under the Union of Lublin the Monarch will govern with a common Senate and Parliament (the Sejm). The Union of Lublin strengthens the Polishn Commonwealth by uniting Poland & Lithuania. The Commonwealth is ruled by an elected monarch carrying out the duties of Polish King & Grand Duke of Lithuania
Role range: 1548-1572
Constitution of Poland
Constitutionally unites all lands under the Polish crown
Role range: 1548-1572
Rule of Ukraine
Incorporates the Ukranian provinces into Poland
Role range: 1548-1572
Unification
Incorporates the Ukranian provinces into Poland. Constitutionally unites all lands under the Polish crown
Role range: 1548-1572
1572
Death of Sigismund II Augustus
Death of Sigismund II Augustus, dies without an heir, last of the Jagiellon line
Role range: 1548-1572
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.