Napoleon’s Army of Italy overran Piedmont‑Sardinia, Lombardy, and the Venetian Republic, establishing French control over much of northern Italy.
In 1797, Napoleon merged several Austrian‑held territories into the Cisalpine Republic, a French client state that introduced revolutionary reforms.
The October 1797 treaty confirmed French dominance, ceding the Austrian Netherlands and recognizing the Cisalpine Republic, while Austria received Venice as compensation.
Austria lost its Italian possessions and was forced onto the defensive, altering the balance of power in Central Europe.
The dazzling victories made Napoleon a national hero in France and paved the way for his coup of 1799 and eventual imperial crown.
French rule introduced the Napoleonic Code, secular education, and nationalist ideas that later fueled the Risorgimento and Italian unification.