Hmmm...
1482--The "accidental" death of Pope Sixtus IV sends the Papal States into deep disorder. Venice, meanwhile, absorbs the Duchy of Ferrara. Louis XI of France does not die.
1485--France (as well as Naples) intervenes in the Papal States, installing a French Pope. Let's call him Sixtus V. Papal territory has been lost, however, primarily to Venice and Naples.
1487--Venice invades Milan, prompting Pope X to declare a Holy League against Venice. This includes the Papacy, France, Spain, Milan, and Naples.
1488--Duke Francis II of Brittany does not die. The Holy League descends upon Venice, which is barely able to hold itself against the alliance. However, Ferdinand and Louis (of Spain and France, respectively) quarrel over the spoils, leading to the breakup of the Holy League. The Spanish army heads south and sacks Rome, ejecting Pope Sixtus V. In his place, a Spanish Pope Sixtus VI is elected. France declares this election coerced, and establishes an antipapacy at Avignon. Milan and Naples retreat from Venice.
1489--Louis dies, leaving his 19-year-old son Charles VIII to rule France. England allies with Spain and attacks the country.
1490--Naples, with Venetian support, invades Sicily.
1492--France defeats Spain. Castile and Aragon are split apart, with the latter being divided between France (the mainland) and Naples (the islands), although Naples never came close to taking Sardinia in the war. England and France make peace, keeping the status quo between them. No Spanish expedition discovers the New World. Philip, son of Emperor Maximilian, dies in a riding accident.
1493--Charles, king of France, marries Margaret of Austria.
1494--King Ferdinand I of the Two Sicilies (formerly Naples) dies, succeeded by his son Alfonso. (OTL)
1495--King Alfonso II of the Two Sicilies dies, succeeded by his son Ferdinand. (OTL)
1496--King Ferdinand II of the Two Sicilies dies, succeeded by his uncle Frederick. (OTL) The kingdom is invaded by both Genoa and Venice. (Not OTL)
1497--Pope Sixtus VI also commands an invasion of the Two Sicilies, but promptly dies. He is succeeded by Pope Sixtus VII, although the Avignon antipapacy has not been abolished. Milan and Modena declare war on Venice.
1498--The Ottomans begin war against Venice. Vasco da Gama leads a Portuguese expedition to India.
1499--Emperor Maximilian falls off a bridge and sustains fatal injuries. On his deathbed, he names as his heir his son-in-law, Charles VIII of France. England and Castile, as well as various German states, quickly find an excuse for war against France.
1500--King Henry VII of England is elected Emperor. Milan and Venice end their war when they divide Modena and Mantua between them. Milan then invades Genoa.
1503--Pope Sixtus VII dies. He is briefly succeeded by Pope Sixtus VIII, and then by Pope Sixtus IX. These papal elections are under a strong Sicilian influence. Castile takes back Aragon; England maintains a foothold on the continent, centered on Calais. The map of Germany gets redrawn too much for me to want to discuss.
1504--The Two Sicilies take Corsica; Milan conquers the city of Genoa itself. Genoan Aegean possessions are taken over by "Christopher I Colombo, Count of Chios", whose claims are entirely self-invented.
1505--Portugal announces the discovery of a previously unknown continent in the west. Nobody follows up on it.
1508--Pope Sixtus IX dies. When his successor, Sixtus X, is a Neapolitan, Emperor Henry establishes another antipapacy at Canterbury.
1509--Emperor Henry dies, succeeded as both King of England and Holy Roman Emperor by his son Arthur.
1512--Charles VIII dies, succeeded by his son Louis XII. Austria at this point has been captured by Bavaria, and enemies are pressing into France on all borders except the Italian. Louis sues for peace, losing Aragon to Castile, Austria to the Wittelsbachs, and the remainder of the Habsburg inheritance (plus part of the French northeast) to the Tudors. Many consider Louis weak.
1513--Venice and the Ottomans sign peace accords. The Ottomans gain various islands and Peloponnesian strongholds. England outfits an expedition west to explore "Antilia", as the Portuguese called it.
1514--The English expedition returns, reporting fish in abundance and a possible strait toward China. It is the mouth of the St. Lawrence. Meanwhile, Portuguese ships begin reaching China.
1515--The English discover that their passage is not a strait through the continent, but merely a large river mouth. The Two Sicilies make a failed assault on Ceuta, attempting to secure the Straits of Gibraltar.
I'm out of time. Maybe I'll continue this later. I'd better, because otherwise it won't be relevant to the thread.
By the way, feel free to point out any errors.
1482--The "accidental" death of Pope Sixtus IV sends the Papal States into deep disorder. Venice, meanwhile, absorbs the Duchy of Ferrara. Louis XI of France does not die.
1485--France (as well as Naples) intervenes in the Papal States, installing a French Pope. Let's call him Sixtus V. Papal territory has been lost, however, primarily to Venice and Naples.
1487--Venice invades Milan, prompting Pope X to declare a Holy League against Venice. This includes the Papacy, France, Spain, Milan, and Naples.
1488--Duke Francis II of Brittany does not die. The Holy League descends upon Venice, which is barely able to hold itself against the alliance. However, Ferdinand and Louis (of Spain and France, respectively) quarrel over the spoils, leading to the breakup of the Holy League. The Spanish army heads south and sacks Rome, ejecting Pope Sixtus V. In his place, a Spanish Pope Sixtus VI is elected. France declares this election coerced, and establishes an antipapacy at Avignon. Milan and Naples retreat from Venice.
1489--Louis dies, leaving his 19-year-old son Charles VIII to rule France. England allies with Spain and attacks the country.
1490--Naples, with Venetian support, invades Sicily.
1492--France defeats Spain. Castile and Aragon are split apart, with the latter being divided between France (the mainland) and Naples (the islands), although Naples never came close to taking Sardinia in the war. England and France make peace, keeping the status quo between them. No Spanish expedition discovers the New World. Philip, son of Emperor Maximilian, dies in a riding accident.
1493--Charles, king of France, marries Margaret of Austria.
1494--King Ferdinand I of the Two Sicilies (formerly Naples) dies, succeeded by his son Alfonso. (OTL)
1495--King Alfonso II of the Two Sicilies dies, succeeded by his son Ferdinand. (OTL)
1496--King Ferdinand II of the Two Sicilies dies, succeeded by his uncle Frederick. (OTL) The kingdom is invaded by both Genoa and Venice. (Not OTL)
1497--Pope Sixtus VI also commands an invasion of the Two Sicilies, but promptly dies. He is succeeded by Pope Sixtus VII, although the Avignon antipapacy has not been abolished. Milan and Modena declare war on Venice.
1498--The Ottomans begin war against Venice. Vasco da Gama leads a Portuguese expedition to India.
1499--Emperor Maximilian falls off a bridge and sustains fatal injuries. On his deathbed, he names as his heir his son-in-law, Charles VIII of France. England and Castile, as well as various German states, quickly find an excuse for war against France.
1500--King Henry VII of England is elected Emperor. Milan and Venice end their war when they divide Modena and Mantua between them. Milan then invades Genoa.
1503--Pope Sixtus VII dies. He is briefly succeeded by Pope Sixtus VIII, and then by Pope Sixtus IX. These papal elections are under a strong Sicilian influence. Castile takes back Aragon; England maintains a foothold on the continent, centered on Calais. The map of Germany gets redrawn too much for me to want to discuss.
1504--The Two Sicilies take Corsica; Milan conquers the city of Genoa itself. Genoan Aegean possessions are taken over by "Christopher I Colombo, Count of Chios", whose claims are entirely self-invented.
1505--Portugal announces the discovery of a previously unknown continent in the west. Nobody follows up on it.
1508--Pope Sixtus IX dies. When his successor, Sixtus X, is a Neapolitan, Emperor Henry establishes another antipapacy at Canterbury.
1509--Emperor Henry dies, succeeded as both King of England and Holy Roman Emperor by his son Arthur.
1512--Charles VIII dies, succeeded by his son Louis XII. Austria at this point has been captured by Bavaria, and enemies are pressing into France on all borders except the Italian. Louis sues for peace, losing Aragon to Castile, Austria to the Wittelsbachs, and the remainder of the Habsburg inheritance (plus part of the French northeast) to the Tudors. Many consider Louis weak.
1513--Venice and the Ottomans sign peace accords. The Ottomans gain various islands and Peloponnesian strongholds. England outfits an expedition west to explore "Antilia", as the Portuguese called it.
1514--The English expedition returns, reporting fish in abundance and a possible strait toward China. It is the mouth of the St. Lawrence. Meanwhile, Portuguese ships begin reaching China.
1515--The English discover that their passage is not a strait through the continent, but merely a large river mouth. The Two Sicilies make a failed assault on Ceuta, attempting to secure the Straits of Gibraltar.
I'm out of time. Maybe I'll continue this later. I'd better, because otherwise it won't be relevant to the thread.
By the way, feel free to point out any errors.