|Covid-19|Monarch – Maria Theresa
May 6 – Seven Years' War – Battle of Prague: The Prussians under Frederick the Great defeats an Austrian army and begins to besiege the city of Prague.
June 18 – Seven Years' War – Battle of Kolín: Prussia is defeated by an Austrian army under Marshal Daun, forcing the Prussian army to evacuate Bohemia.
November 22 – Seven Years' War – Battle of Breslau: The Austrian army under Prince Charles Alexander of Lorraine defeats the Prussian army of Wilhelm of Brunswick-Bevern and the Prussians retires behind the Oder.
Seven Years' War – Battle of Leuthen: Frederick defeats Prince Charles's Austrian army.
December 7–December 20
Seven Years' War – Siege of Breslau: Frederick retakes the city of Breslau.
1757 in Austria Wikipedia
Events from the year 1757 in Austria