A military map from the second half of the 18th century entitled "Combat de Reichenberg, en Bohéme ..." depicting the battle of the North Bohemian town of Liberec and showing its military operations. The Battle of Liberec took place on 21 April 1757 as part of the Seven Years' War. In this battle, the Prussian army led by Duke August Wilhelm von Braunschweig-Bevern fought with Austrian troops led by Count Christian Moritz von Königsegg-Rothenfels. In the end, the Prussians won at Liberec. The map shows a thumbnail of the city of Liberec, below which is the area where the battle took place, which is filled in on this map with blue and red markers, symbolizing the Austrian and Prussian armies.