obtain the title to the recently discovered New World. Alexander, in the bull Inter caetera on 4 May 1493, divided the title between Spain and Portugal along a demarcation line. This became the basis of the Treaty of Tordesillas. French involvement Pope Alexander VI made many alliances to secure his position. He sought help from Charles VIII of France (1483–1498), who was allied to Ludovico "il Moro" Sforza (the Moor, so-called because of his swarthy complexion), the de facto Duke of Milan, who needed French support to legitimise his rule. As King Ferdinand I of Naples was threatening to come to the aid of the rightful duke Gian Galeazzo Sforza, the husband of his granddaughter Isabella, Alexander encouraged the French king in his plan for the conquest of Naples. But Alexander, always ready to seize opportunities to aggrandize his family, then adopted a double policy. Through the intervention of the Spanish ambassador he made peace with Naples in July 1493 and cemented the peace by a marriage between his son Gioffre and Doña Sancha, another granddaughter of Ferdinand I. In order to dominate the College of Cardinals more completely, Alexander, in a move that created much scandal, created 12 new cardinals. Among the new cardinals was his own son Cesare, then only 18 years old. Alessandro Farnese (later Pope Paul III), the brother of one of the Pope's mistresses, Giulia Farnese, was also among the newly created cardinals. On 25 January 1494, Ferdinand I died and was succeeded by his son Alfonso II (1494–1495). Charles VIII of France now advanced formal claims on the Kingdom of Naples. Alexander authorised him to pass through Rome, ostensibly on a crusade against the Ottoman Empire, without mentioning Naples. But when the French invasion became a reality Pope Alexander VI became alarmed, recognised Alfonso II as king of Naples, and concluded an alliance with him in exchange for various fiefs for his sons (July 1494). A military response to the French threat was set in motion: a Neapolitan army was to advance through Romagna and attack Milan, while the fleet was to seize Genoa. Both expeditions were badly conducted and failed, and on 8 September Charles VIII crossed the Alps and joined Ludovico il Moro at Milan. The Papal States were in turmoil, and the powerful Colonna faction seized Ostia in the name of France. Charles VIII rapidly advanced southward, and after a short