Why did Spain become the dominant power in Italy during the Italian Wars?

Spain’s dominance in Italy during the Italian Wars was secured through a combination of decisive military victories and diplomatic treaties that forced France to renounce its claims.

The turning point was the Battle of Pavia in 1525, where the imperial forces of Charles V virtually annihilated the French army and captured Francis I. This defeat left France vulnerable and allowed the Habsburgs to consolidate power. Following his capture, Francis was forced to sign treaties, including the Treaty of Madrid and later the Treaty of Cambrai in 1529, in which he formally renounced all claims to Italy.123

Additionally, shifting alliances played a critical role. The defection of the Genoese admiral Andrea Doria from the French to the imperial side in 1528 significantly weakened French military capacity. By 1530, Italy had largely submitted to Spanish pacification, a status eventually solidified by the Peace of Cateau-Cambrésis in 1559, which officially confirmed the era of Spanish hegemony.23