Alexios I Komnenos vs Gonzalo Fernandez de Cordoba

Alexios I Komnenos was defeated by the Norman army under Robert Guiscard at Dyrrhachium. The Byzantine forces were routed, and Alexios barely escaped. This loss allowed the Normans to occupy much of the western Balkans, though Alexios later recovered some territory.

Alexios I implemented a series of reforms to restore Byzantine power. He reorganized the army by relying more on foreign mercenaries, reformed the currency (the hyperpyron), and granted tax exemptions to the Church. These measures stabilized the empire after decades of decline.

Alexios I sent envoys to Pope Urban II at the Council of Piacenza, requesting military aid against the Seljuk Turks. This appeal contributed to Urban's call for the First Crusade at the Council of Clermont later that year, initiating the Crusader movement.

Alexios I cooperated with the Crusader army to besiege and capture Nicaea from the Seljuk Turks. The city was surrendered to Byzantine control, and Alexios used the Crusaders to recover key territories in Anatolia, though tensions later arose over land claims.

Cordoba's Spanish army defeated the French at Cerignola, Italy. Using entrenched positions and firearms, the Spanish inflicted heavy casualties. This was the first major battle won primarily by arquebus fire.

Cordoba launched a surprise night attack across the Garigliano River, routing the French army. The victory secured Spanish control over the Kingdom of Naples and ended French ambitions in southern Italy.

Cordoba organized Spanish infantry into tercios, combining pikemen and arquebusiers in a flexible formation. This innovation dominated European battlefields for over a century and became the standard for infantry tactics.

Ferdinand II of Aragon appointed Cordoba as Viceroy of Naples, the highest office in the newly conquered kingdom. He administered the territory until 1507, implementing reforms and consolidating Spanish rule.