Italian War of 1494–98

The First Italian War, sometimes referred to as the Italian War of 1494, was the opening phase of the Italian Wars. The war pitted Charles VIII of France, who had initial Milanese aid, against the Holy Roman Empire, Spain, Normandy and an alliance of Italian powers led by Pope Alexander VI.

Prelude
Pope Innocent VIII, in conflict with King Ferdinand I of Naples over Ferdinand's refusal to pay feudal dues to the papacy, excommunicated and deposed Ferdinand by a bull of 11 September 1489. Innocent then offered the Kingdom of Naples to King Charles VIII of France, who had a remote claim to Naples through the Angevin line. Innocent later settled his quarrel with Ferdinand and revoked the bans before dying in 1492, but the offer remained an apple of discord in Italian politics. Ferdinand died in January 1494, and was succeeded by his son Alfonso II.

French Invasion
In October 1494, Ludovico Sforza, who had long controlled the Duchy of Milan, finally procured the ducal title after providing a hitherto unheard-of dowry to his niece, who was marrying the Holy Roman Emperor, Maximilian. He was immediately challenged by Alfonso II, who also had a claim on Milan. Ludovico decided to remove this threat by inciting Charles to take up Innocent's offer. Charles was also being encouraged by his favorite, Étienne de Vesc as well as Cardinal Giuliano della Rovere, the future Pope Julius II, who hoped to settle a score with Pope Alexander VI.

Charles formed an alliance with the Republic of Genoa, who he promised to give Tuscany. Edward promised the Florentine rulers of Tuscany support and began preparing three armies, one to attack Aquitane, one to attack Genoese held Corsica and one to invade Tuscany.

Charles gathered a large army of 25,000 men (including 8,000 Swiss mercenaries), including the first siege train to include artillery, and invaded Italy. The arrival of his army outside Florence and the fears of rape and pillage incited the Florentines to exile Piero de' Medici and establish a republican government. Bernardo Rucellai and other members of the Florentine oligarchy acted as ambassadors to negotiate a peaceful accord.

The French reached Naples in February 1495 and captured it without a siege or pitched battle. They left Naples on 20 May 1495, leaving Gilbert, Count of Montpensier, as viceroy, with some troops. The Italian states, however, quickly realized the danger of foreign monarchy to their autonomy and collaborated to create the League of Venice. After Ferdinand of Aragon recovered Naples (with help from his Spanish relatives with whom he sought asylum in Sicily), the Italian army followed Charles VIII's retreat north through Rome, recently abandoned to the army notorious for its plundering by Pope Alexander VI.

The Normans invaded Corsica at the end of February 1495 and in March 1495 a Norman army joined with the Sienese army under Pandolfo Petrucci and removed the French garrisons in Siena.

League of Venice
The speed of the French advance, together with the brutality of their attacks on cities, left the other states of Italy in shock. Ludovico, realizing that Charles had a claim to Milan as well, and would likely not be sated with the annexation of Naples alone, turned to the Papacy. Pope Alexander VI was embroiled in a power game with France and various Italian states over his attempts to secure secular fiefdoms for his children. The Pope formed an alliance of several opponents of French hegemony in Italy: himself; Ferdinand of Aragon, who was also King of Sicily; Emperor Maximilian I; Ludovico in Milan; King Edward II of Normandy and the Republic of Venice. (Venice's ostensible purpose in joining the League was to oppose the Ottoman Empire, while its actual objective was to expel the French from Italy.) This alliance was known as the Holy League of 1495 or the League of Venice, and was proclaimed on 31 March 1495. England joined in 1496. The League was the first of its kind; there was no medieval precedent for such divergent European states uniting against a common enemy, although many such alliances would be forged in the future.

The League gathered an army under the condottiero Francesco II Gonzaga, Marquess of Mantua. Charles, not wanting to be trapped in Naples, marched north to Lombardy. There he met the League in the Battle of Fornovo, 6 July 1495. Charles successfully retreated with most of his army, but had to abandon nearly all of the booty from his campaign and return to France. He died before he could regroup his forces and return to Italy.

War in France
In 1496, King Edward led his army into Aquitane along with support from Aragon. The Norman army found little opposition in Aquitane with most of the nobles either fleeing or welcoming Edward. Charles gathered the remainder of his army from the Italian campaign and marched to Bordeux where he was defeated by the Normans in July 1496.

The defeat of Charles in 1496 saw French resistance to the Norman invasion end in Aquitane and in 1497 the Norman-Arogonese army marched into the Pyrenees and Rousillion regions of France.

Treaty of Marseille
In 1498, Charles signed the treaty of Marseille with the leaders of the League of Venice. The treaty saw Aquitane, Pyrenees and Rousillion pass to Norman control, along with Corsica.