Battle of Freiburg

:"This battle is often confused with the Battle of Freiberg of 1762."

Infobox Military Conflict
conflict=Battle of Freiburg
partof=the Thirty Years' War


caption=
date=August 3, August 5, August 9, 1644
place=Freiburg, present-day Baden-Württemberg, Germany
result=French victory
combatant1=flagicon|France|royal France
combatant2=flag|Holy Roman Empire
flag|Bavaria
commander1=Duc d'Enghien,
Turenne
commander2=Baron von Mercy
strength1=
strength2=
casualties1=
casualties2=

The Battle of Freiburg, also called the Three Day Battle, took place on August 3, August 5 and August 9 1644 as part of the Thirty Years' War. The entrenched Bavarians led by Franz von Mercy retreated after three separate days of being assaulted by the French army under Louis II de Bourbon, Duc d'Enghien and marshal Henri de la Tour d'Auvergne, Vicomte de Turenne, and the French then went on to capture the city of Freiburg. The Battle of Freiburg produced the highest number of casualties of any battle in the War.