Battle of Dessau Bridge

Battle of Dessau Bridge
Part of the Thirty Years' War
Date April 25, 1626 Location Dessau (present-day Germany) Result Catholic victory
Belligerents
Denmark Protestant Union	Holy Roman Empire Catholic League
Commanders and leaders
Ernst von Mansfeld	Albrecht von Wallenstein Torquato Conti
Strength
12,000	20,000
Casualties and losses
4,000 dead, wounded or captured	2,000

The Battle of Dessau Bridge (German: Schlacht bei Dessau) was a significant battle of the Thirty Years' War between Danish Protestants and the Imperial German Catholic forces on the Elbe River outside of Dessau, Germany on April 25, 1626. This battle was an attempt by Ernst von Mansfeld to cross the Dessau Bridge in order to invade the headquarters of the Imperial Army in Magdeburg, Germany. The Dessau bridge was the only land access between Magdeburg and Dresden, which made it difficult for the Danes to advance. The Count of Tilly wanted control of the bridge in order to prevent King Christian IV of Denmark from having access to Kassel and to protect the Lower Saxon Circle. The Imperial German forces of Albrecht von Wallenstein handily defeated the Protestant forces of Ernst von Mansfeld in this battle.

Albrecht von Wallenstein began his preparation in October and November 1625 by settling in the Halberstadt-Aschersleben area and extending its borders. Wallenstein and the growing Imperial Army were informed of the approach of Mansfeld and his Danish army. King Christian IV of Denmark had formally entered Denmark into the Thirty Years War. As Mansfeld and his army was commanded to approach Albrecht von Wallenstein at the Dessau Bridge, King Christian IV of Denmark and ally Christian of Brunswick were commanded to fight the Catholic army of the Count of Tilly in Upper Austria. Although Christian of Brunswick's engagements at Fleurus, Höchst in 1622, and the Battle of Stadtlohn in 1623 were victorious, the battles diminished his force. Christian of Brunswick and his peasant Protestant army, backing the army of King Christian of Denmark, was soon eliminated by the Catholics due to the weakness of his army and lack of a supporting army from Landgrave when moving into Hesse. Part of the Imperial Army, under the command of Johann von Aldringen, had time to prepare heavy artillery and troops for any Protestant threat advancing down the Elbe. Wallenstein and the Imperial Catholic league marched to Dessau, where Mansfeld and the Protestant army would inevitably try to cross in order to reach Magdeburg and the German Catholic League headquarters in Aschersleben. In Vienna, there was talk of Wallenstein's deposition from his army and replacement by the Italian, Count Collalto, an expert in the art of mercenary leadership.

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