Between 10 and 17 October 1757, a Hungarian general, Count András Hadik, serving in the Austrian army, executed what may be the most famous hussar action in history. When the Prussian King Frederick was marching south with his powerful armies, the Hungarian general unexpectedly swung his force of 5,000, mostly hussars, around the Prussians and occupied part of their capital, Berlin, for one night. The city was spared for a negotiated ransom of 200,000 thalers. When Frederick heard about this humiliating occupation, he immediately sent a larger force to free the city. Hadik, however, left the city with his Hussars and safely reached the Austrian lines. Subsequently, Hadik was promoted to the rank of Marshal in the Austrian army.