The 1641 Imperial siege of Dorsten forced the Hessian garrison to capitulate, reflecting the broader contest over Westphalian territories during the Thirty Years' War.
Key Facts
- Siege start date
- 16 July 1641
- Garrison capitulation date
- 18 September 1641
- Imperial commander
- Melchior von Hatzfeldt
- Dorsten captured by Hesse-Cassel
- 9 February 1633
- First recapture attempt failed
- 1636, by Johann von Götz
By the Numbers
Location
Cause → Event → Consequence
Under the 1631 Treaty of Werben, Sweden promised Hesse-Cassel Westphalian territories including parts of the Prince-Bishopric of Münster and Vest Recklinghausen if victorious in the Thirty Years' War. Hesse-Cassel had seized Dorsten from the Electorate of Cologne in 1633 and fortified it heavily, making it a strategic Imperial target.
From 16 July to 19 September 1641, an Imperial force under Melchior von Hatzfeldt besieged the Hessian garrison holding Dorsten. The garrison capitulated on 18 September 1641 and evacuated the town the following day, ending Hessian control of the fortified position.
The fall of Dorsten to Imperial forces removed a significant Hessian stronghold in the Westphalian region. This outcome affected Hesse-Cassel's strategic position in the ongoing conflict over territories promised under the Treaty of Werben, reversing years of Hessian fortification efforts in the area.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Melchior von Hatzfeldt.
Side B
1 belligerent