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 First Battle of Saorgio saw a French army commanded by Gaspard Jean-Baptiste Brunet attack the armies of the Sardinia-Piedmont and Austria led by Joseph Nikolaus De Vins. The local Sardinian commander in the Maritime Alps was Charles-François Thaon, Count of Saint-André. Though the French were initially successful in this War of the First Coalition action, their main assaults against the strong defensive positions on the Massif de l'Authion and the Col de Raus failed with serious losses. Saorge is now located in France about 70 kilometres (43 mi) northeast of Nice, but in 1793 Saorgio belonged to Piedmont. In April 1794 the French seized the positions from the Austro-Sardinians in the Second Battle of Saorgio.