Battle of Oldendorf

Battle of Oldendorf
Part of Thirty Years' War
Date 8 July 1633 Location Hessisch-Oldendorf (present-day Germany) Result Decisive Swedish victory
Belligerents
Sweden	Holy Roman Empire (Imperial Army)
Commanders and leaders
George, Duke of Brunswick-Lüneburg Dodo zu Innhausen und Knyphausen	Jobst Maximilian von Gronsfeld Floris de Mérode-Westerloo Lothar Dietrich Freiherr von Bönninghausen
Strength
13,000	15,000
Casualties and losses
700 dead and wounded	3,000 dead and wounded 1,000 captured

The Battle of Oldendorf (German: Schlacht bei Hessisch-Oldendorf ) on 8 July 1633 was fought as part of the Thirty Years' War between the Swedish Empire and the Holy Roman Empire near Hessisch-Oldendorf, Lower Saxony, Germany. The result was a decisive victory for the Swedish Army.

The Landgrave of Hesse-Kassel, William V, as a Protestant ally of Sweden had campaigned in Westphalia, Ruhr area and the Sauerland, successfully reducing the imperial presence there. The imperial defense of the Weser area in 1633 was led by Jobst Maximilian von Gronsfeld.

The battle was preceded by a Swedish siege of the nearby imperial-held town of Hameln, laid in March 1633 with support of Hessian and Lüneburgian troops.

On 8 July, the Swedish army commanded by George, Duke of Brunswick-Lüneburg and Marshal Dodo zu Innhausen und Knyphausen faced an Imperial relief army commanded by Field Marshal Jobst Maximilian von Gronsfeld, Count John (Johann, Jean) of Merode and Lothar Dietrich Freiherr von Bönninghausen. Merode commanded 4,450 infantrymen and 1,245 cavalry troops, Bonninghausen 4,475 infantry and 2,060 cavalry, Gronsfeld 2,000 infantry and 600 cavalry. The armies met near Hessisch-Oldendorf, northwest of Hameln.

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