Westphalia, Hesse and Lower Saxony Electoral Saxony Brandenburg Silesia East Prussia Pomerania Iberian Peninsula Naval Operations The siege of Prague was an unsuccessful attempt by a Prussian army led by Frederick the Great to capture the Bohemian city of Prague during the Third Silesian War (Seven Years' War).

Despite having won that battle, Frederick had lost 14,300 dead, and his severely depleted force was not strong enough to assault Prague.

Instead Frederick decided to besiege the city, hoping to force it into submission through lack of supplies.

[1] Frederick attempted to gain intelligence from within Prague by sending the criminal Christian Andreas Käsebier several times into the besieged city.

An Austrian army led by the Count von Daun made a sudden march to the north, threatening Frederick's lines of supply, and he was forced to break off the siege and march to attack them.