Battle of Sempach

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Battle of Sempach
Part of the expansion of the Swiss Confederation
The battle scene in the fresco in the battle chapel at Sempach. 1886 restoration of a 17th-century painting, which was in turn based on a 16th-century work.
Date 9 July 1386 Location near Sempach Result Swiss victory
Belligerents
Old Swiss Confederacy Lucerne Uri Schwyz Unterwalden	Duchy of Austria
Commanders and leaders
Petermann von Gundoldingen  †	Leopold III, Duke of Austria † Johann von Ochsenstein  † Johann von Waldburg  †
Strength
c. 1,000 – 1,500	c. 4,000, including 1,500 knights
Casualties and losses
c. 200-600	c. 1,500, among them c. 400 noblemen[1]

^[2]

The Battle of Sempach was fought on 9 July 1386, between Leopold III, Duke of Austria and the Old Swiss Confederacy. The battle was a decisive Swiss victory in which Duke Leopold and numerous Austrian nobles died. The victory helped turn the loosely allied Swiss Confederation into a more unified nation and is seen as a turning point in the growth of Switzerland.