Key Facts
- Duration
- 1711–1715 (with intervals)
- Final siege dates
- 12 July – 24 December 1715
- Coalition members
- Denmark-Norway, Saxony, Russia, Prussia, Hanover
- Swedish commander
- Charles XII of Sweden (from 1714)
- Post-siege control
- Stralsund passed to Danish control
Strategic Narrative Overview
A first coalition advance in 1711 was repulsed by Swedish relief forces, after which the allies drew a broader containment line along the Recknitz and Peene rivers. Magnus Stenbock's victory at Gadebusch briefly disrupted allied momentum, but his subsequent defeat allowed Prussia and Hanover to join the anti-Swedish alliance. In 1714, Charles XII returned from Turkish exile to lead Stralsund's defence personally, yet the reinforced siege begun in July 1715 proved insurmountable.
01 / The Origins
During the Great Northern War, the Swedish Empire held Stralsund as a vital port in Swedish Pomerania. A coalition of Denmark-Norway, Saxony, and Russia sought to break Swedish power on the southern Baltic coast. Territorial incentives bound the allies together: Denmark was promised northern Swedish Pomerania with Stralsund, while Prussia was offered the southern parts, and Hanover was to receive Bremen-Verden from Denmark.
03 / The Outcome
After sustained pressure from 12 July to 24 December 1715, Stralsund surrendered to the coalition. Charles XII escaped by sea to Sweden. Stralsund remained under Danish occupation until the Treaty of Frederiksborg returned it to Sweden, though Sweden's broader Pomeranian holdings were permanently diminished and the siege marked the effective end of Swedish dominance in southern Pomerania.
Belligerents & Mobilization Analysis
Side A
5 belligerents
Side B
1 belligerent
Charles XII of Sweden, Magnus Stenbock.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.