Short answers, pulled from the story.
Feldmarschall-Leutnant Michelangelo Alessandro Colli-Marchi commanded an Austro-Sardinian force numbering 21,000 men. He fought against Napoleon Bonaparte's French army on the 21st of April 1796.
The Battle of Mondovì erupted on the 21st of April 1796 between Napoleon Bonaparte's French army and the forces of King Victor Amadeus III. This clash marked the final chapter of the Montenotte Campaign.
Hills dominated the west bank where river crossings occurred including Madonna della Cassette in the north and La Bicocca in the center. The Corsaglia River flowed in a northeasterly direction before joining the Tanaro River near Lesegno.
The Piedmontese lost 8 cannons and 1,600 men killed wounded and captured out of 13,000 according to historian Gunther E. Rothenberg. A third source claimed 800 to 1,500 captured plus 800 Piedmontese killed and wounded.
King Victor Amadeus III sued for peace just one week after the battle following the defeat that wrecked Austrian Habsburg strategy. The agreement effectively knocked the Kingdom of Sardinia out of the First Coalition.