In the Siege of Hameln or Siege of Hamelin (7 November 1806–22 November 1806), First French Empire forces captured the fortress of Hamelin from its garrison composed of troops from the Kingdom of Prussia. The siege was begun by the VIII Corps under French Marshal Édouard Adolphe Casimir Joseph Mortier. The marshal initially left General of Division Jean-Baptiste Dumonceau in charge of operations. General of Division Anne Jean Marie René Savary soon arrived to conduct negotiations with the Prussian commander General Karl Ludwig von Lecoq, who was quickly persuaded to surrender. Technically, the operation from the War of the Fourth Coalition was a blockade because a formal siege never took place. Hamelin is located 36 kilometers southwest of Hanover.