Battle of Frankfurt an der Oder

Battle of Frankfurt an der Oder
	Part of the Thirty Years' War
	; Battle of Frankfurt an der Oder; by Matthäus Merian (1642)
Date	13 April 1631
Location	Frankfurt an der Oder, Margraviate of Brandenburg; (present-day Brandenburg, Germany)52°21′N 14°33′E / 52.350°N 14.550°E
Result	Swedish victory
Belligerents
Sweden	Holy Roman Empire Holy Roman Empire; German Catholic League
Commanders and leaders
Gustavus Adolphus; John Hepburn; Robert Monro	Rudolf von Tiefenbach; Walter Butler (POW)
Strength
18,000	6,400
Casualties and losses
800 killed or wounded	3,000 killed
	Frankfurt an der Oder Location within Brandenburg Frankfurt an der Oder Frankfurt an der Oder (Germany)

The Battle of Frankfurt an der Oder on 13 April 1631 took place during the Thirty Years' War. The Imperial city of Frankfurt an der Oder was taken by a Swedish army, the first town within the Empire to be occupied outside Pomerania, where Sweden had established a bridgehead in 1630.

After a two-day siege, Swedish forces, including several regiments of Scottish auxiliaries, stormed the town. Possession of Frankfurt and the subsequent occupation of nearby Landsberg, secured the Swedish army's rear and allowed Gustavus Adolphus of Sweden to advance further into Central Germany.