Siege of Dorsten

Siege of Dorsten
Part of the Thirty Years' War (Hessian War)

The Town of Dorsten in 1641 by Matthäus Merian.
Date16 Jul –19 Sep 1641
Location51°39′36″N 6°57′51″E / 51.66000°N 6.96417°E / 51.66000; 6.96417
Result Imperial victory
Withdrawal of Hesse-Cassel from Dorsten
Further sieges in Electorate of Cologne and neutral Duchy of Jülich
Surrender signed 18 Sep 1641 in Dorsten
Belligerents
Hesse-Cassel  Holy Roman Empire
Commanders and leaders
Johann von Geyso Surrendered
Emmanuel Kotz Surrendered
Carl von Rabenhaupt
Ernst Albrecht von Eberstein
Holy Roman Empire Graf von Hatzfeldt
Holy Roman Empire Alexander II of Velen
Strength
2,000 (infantry, cavalry, artillery), 250 men of the Hessian 1st relief force from Haltern, 2nd relief force incl. 3,000 Swedish cuirassiers withdrawn from Wolfenbüttel (too late for battle) 12 regiments of infantry,
10 regiments of cavalry
30 pieces of heavy artillery)
Casualties and losses
1,350 killed and wounded unknown
Dorsten is located in North Rhine-Westphalia
Dorsten
Dorsten
Location within North Rhine-Westphalia
Dorsten is located in Germany
Dorsten
Dorsten
Dorsten (Germany)

In the siege of Dorsten (German: Belagerung von Dorsten), an Imperial force under Melchior von Hatzfeldt besieged the Hessian garrison in the town of Dorsten from 16 July 1641 to 19 September 1641 during the Thirty Years' War. The garrison capitulated on 18 September 1641 and moved out of the town the following day.

According to a judgement by the Vienna Supreme Court (Wiener Hofgericht), Hesse-Cassel had to cede Upper Hesse, which included the University of Marburg, to Hesse-Darmstadt. In return for this substantial loss, in the Treaty of Werben on 22 August 1631, King Gustavus Adolphus of Sweden promised to grant Hesse-Cassel various territories in Westphalia including parts of the Prince-Bishopric of Münster (Hochstift Münster) and the Vest Recklinghausen (governed by the Electorate of Cologne), if he were victorious in the Thirty Years' War.

On 9 February 1633, Hesse-Cassel captured Dorsten without resistance from the Electorate of Cologne. In the following years, it was turned into the strongest fortress in the region by the Hessian Colonel Dalwig and by Johann Adriansch. A first attempt to recapture it by Johann von Götz failed in 1636.

The siege of Dorsten, 1641

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