In this second clash between ideologies for the prized Saxoncity of Leipzig, the Protestant allied forces, led by Torstensson, defeated an army of the Holy Roman Empire, led by Leopold and his deputy, Prince-General Piccolomini. The Imperials had 26,000 men and 46 guns, the Swedes 20,000 men and 70 guns. Like the first battle, the second was a decisive victory for Swedish-led forces who had intervened in the Thirty Years' War on behalf of various Protestant princes of the generally small German states against the German Catholic League formed to resist Protestant expansion in Central Europe. The Imperial army suffered 9,500 casualties, including 4,500 taken prisoner. The victors captured 46 guns. Killed or wounded were 4,000 Swedes; among them, General Torsten Stålhandske, who led the Finnish Hakkapeliitta Cavalry, received a serious wound.
Aftermath
The battle, following a brief mop-up campaign ending with the Battle of Klingenthal, enabled Sweden to occupy Saxony. His defeat made Emperor Ferdinand III more willing to negotiate peace, and renounce the Preliminary of Hamburg. During the battle, Colonel Madlon's cavalry regiment was the first that fled without striking a blow. This was followed by the massive flight of other cavalry units, which was the final turning point in the battle. The battle was a decisive victory for the Swedish army under the command of Field Marshal Lennart Torstenson over an Imperial Army of the Holy Roman Empire under the command of Archduke Leopold Wilhelm of Austria and his deputy, Prince-General Ottavio Piccolomini, Duke of Amalfi. Archduke Leopold Wilhelm assembled a court-martial in Prague which sentenced the Madlon regiment to exemplary punishment. Six regiments, which had distinguished themselves in the battle, were assembled fully armed and surrounded Madlon's regiment, which was severely rebuked for its cowardice and misconduct and ordered to lay down its arms at the feet of General Piccolomini. When they had obeyed that command, their ensigns were torn in pieces, and the general, having mentioned the causes of their degradation, and erased the regiment from the register of the imperial troops, pronounced the sentence that had been agreed upon in the council of war, condemning the colonel, captains and lieutenants to be beheaded, the ensigns to be hanged, the soldiers to be decimated and the survivors to be driven in disgrace out of the army. Ninety men were executed at Rokycany, in western Bohemia, now in the Czech Republic, on December 14, 1642 by Jan Mydlář, the son of Jan Mydlář, the famous executioner from Prague. On the first day of the execution, the regiment's cords were broken by the executioner. On the second day, officers were beheaded and selected men hanged on the treeson the road from Rokycany to Litohlavy. Another version says that the soldiers were shot, and their bodies hanged on the trees. Their mass grave is said to be on the Black Mound in Rokycany, which commemorates the decimation to this day.