Established the legal basis for Swedish military occupation of Pomerania during the Thirty Years' War, shaping northern Germany's political order until 1648.
Key Facts
- Date concluded (N.S.)
- 4 September 1630
- Predated to (N.S.)
- 20 July 1630 (date of Swedish Landing)
- Parties
- Swedish Empire and Duchy of Pomerania
- Superseded by
- Peace of Westphalia (1648) and Treaty of Stettin (1653)
- Outcome for Pomerania
- Partitioned into Swedish Pomerania and Brandenburg-Prussian Province of Pomerania
By the Numbers
Location
Cause → Event → Consequence
Sweden intervened in the Thirty Years' War and landed forces in Pomerania on 20 July 1630, requiring a formal legal arrangement to legitimize its military presence in the Duchy of Pomerania and secure a bridgehead for operations into Central and Southern Germany.
Concluded on 4 September 1630 (N.S.) but predated to the Swedish Landing, the Treaty of Stettin provided the legal framework for Swedish occupation of Pomerania. Sweden assumed military control of the duchy, using it as a base for campaigns deeper into the Holy Roman Empire.
Sweden successfully defended Pomerania against Holy Roman Empire forces after the last Pomeranian duke died in 1637. The treaty was ultimately superseded by the Peace of Westphalia (1648) and a subsequent Treaty of Stettin (1653), which partitioned Pomerania between Sweden and Brandenburg-Prussia.
Political Outcome
Sweden secured legal control of Pomerania as a military bridgehead; after 1648, Pomerania was partitioned between Sweden and Brandenburg-Prussia.
Pomerania was an independent duchy under its own Pomeranian dukes within the Holy Roman Empire.
Sweden held military and legal control of Pomerania; after 1648–1653, the duchy was divided into Swedish Pomerania and a Brandenburg-Prussian province.