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

Hamelin is a town on the river Weser in Lower Saxony, Germany. It is the capital of the district of Hamelin-Pyrmont and has a population of roughly 57,000. Hamelin is best known for the tale of the Pied Piper of Hamelin.