Michelangelo Alessandro Colli-Marchi or Michelangelo da Vigevano or Michael Colli entered the Habsburg Austrian army as a commissioned officer and became a general officer after fighting in the Seven Years' War, War of the Bavarian Succession, and Austro-Turkish War. During the War of the First Coalition, he was loaned to the Kingdom of Sardinia-Piedmont for three years. In 1796, his army was defeated by Napoleon Bonaparte in a swift campaign that knocked Sardinia-Piedmont out of the war. In early 1797, he was given command of the army of the Papal States, but his troops were defeated at Faenza.

The Battle of Montenotte was fought on 12 April 1796, during the French Revolutionary Wars, between the French army under General Napoleon Bonaparte and an Austrian corps under Count Eugène-Guillaume Argenteau. The French won the battle, which was fought near the village of Cairo Montenotte in the Kingdom of Piedmont-Sardinia. The modern town is located in the northwestern part of Italy. On 11 April, Argenteau led 3,700 men in several assaults against a French mountaintop redoubt but failed to take it. By the morning of the 12th, Bonaparte concentrated large forces against Argenteau's now-outnumbered troops. The strongest French push came from the direction of the mountaintop redoubt, but a second force fell on the weak Austrian right flank and overwhelmed it. In its hasty retreat from the field, Argenteau's force lost heavily and was badly disorganized. This attack against the boundary between the Austrian and Sardinian armies threatened to sever the link between the two allies. This action was part of the Montenotte Campaign.