The Battle of Moys was fought on 7 September 1757 during the Third Silesian War.
A Prussian army of 13,000 men fought an Austrian army of double their size. The Prussians were defeated and their commander killed.
The battle was fought near Moys in... Wikipedia
Date: September 7, 1757
Location: Zgorzelec Ujazd, Zgorzelec, and Upper Lusatia