With a raging blizzard outside today, I had time on my hands, but for some reason didn't want to finish my submod for release. Instead, a long overdue update:
Chapter X - Italian Ambitions
"You may have the universe if I may have Italy."
-Giuseppe Verdi
The Throne of Naples
With pirates becoming an increasing threat along Tuscany's much extended coastline, Carlo I's first act as Grand Duke was to pass a harsh new anti-piracy law.
His second act was to anull the treaty with France and Naples, and on February 1, 1615, he declared war on the fledgling kingdom of Naples, renewing his father's claim to the throne as his right.
Henri III of France was in a tight spot to help his cousin this time around, as the French navy and professional army were in the New World fighting Mayans in the Yucatan. Spain was stable and at peace, so any attempt to stretch French forces further might provide the Spanish with a perfect opportunity to retake the Pyrenees. Furthermore, Austria and its allies, including Bavaria, were busy Crusading against the Turks. Though the Habsburgs considered coming to Naples' defense to try to keep Italy fractured, the Emperor Maximilian's immediate declaration of support for Tuscany meant they'd risk turning the Emperor from an ally to an enemy when they needed him most.
Nevertheless, the Italian states (except Milan who was involved in the Crusade as well) condemned the Tuscan aggression and began mobilizing for war. But it was Carlo who was prepared to fight. With 12,000 men, he invaded Naples from the northeast. Alfonso II hurriedly took control of his Neapolitan army and fled the city north to attack Roma, but in vain. Carlo's well-trained troops and engineers, combined with spies and sympathizers working in the city itself, took control of Naples in only 11 days. Carlo then marched north and defeated Alfonso outside Rome, and the Kingdom of Naples was added to the Crown of Tuscany. Carlo then marched north to face the Ferraran army besieging Florence. They fought galiantly but were overwhelmed by the superior Tuscan forces. Fighting in Ferrara (including Modena) against Ferraran and Genoese militias continued for months, as the Ferraran towns and cities put up staunch resistance in the hills of central Italy.
In the north, Carlo's second army of 16,000 men marched into Venetian territory and captured Friuli within two weeks. Securing passage through Habsburg Austria, they reached Istria two months later.
Seeing the stiff resistance of Ferrara and Genoa, the Emperor called for peace since Carlo had gotten what he wanted: Naples. While Carlo clearly had his eyes on annexing Ferrara, he was in no position to take on the Emperor himself, and did not want to cause the Crusade against the Turks to fall apart. With minor concessions from Venice, he agreed to a truce.
The "Slavic Crusade"
Having secured the throne of Naples for himself, the ambitious Carlo began looking for more battles. Italy was off-limits for the time being.
The Habsburg-Ottoman war continued to rage in Croatia and Slovenia, and in 1618 France, having been somewhat humiliated by the Mayans in the Yucatan jungles, redirected its forces against the Turkish threat. However, the Habsburgs refused to let the heretic Carlo join the Crusade.
By late 1619, the Ottoman's hold on the Balkans began to collapse as Austrian forces broke through in Croatia. Revolts broke out all along the Danube as Hungarian, Croatian, Serbian, and Bulgarian rebels stormed Ottoman garrisons. As the Ottoman state temporarily collapsed, the opportunisitc Duke of Transylvania invaded from the north, seizing Belgrade for himself.
Grand Duke Carlo saw an opportunity. Diplomatically prevented from joing the war against the Turks, he declared his own 'Crusade' of liberation against Transylvania in support of Serbian nationalists. Transylvania was protected by the King of Poland, however Carlo responded by calling in his newest ally, the newly Protestant Duke of Livonia.
Marching through the Habsburg occupied Balkans, he reached Serbia in February of 1622 and quickly defeated the Transylvanian army. Upon crossing the Danube, the Duke's army surrendered to Carlo. With a grandiose proclamation of his generosity, Carlo carved a new Serbian Kingdom from the Transylvanian conquests.
Poland, however, was no pushover. A Bavarian army assaulted key castles along their western borders while the Livonians overran the small Lithuanian forces. Following his victory in the Balkans, Carlo marched north through Hungary to besiege Krakow. Faced with the Polish winter, inadequate supplies, and inferior numbers, he was forced to withdraw the siege as 1622 came to a close. After an inconclusive spring, Lithuania ceded Troki to Livonia and the Poles agreed to a truce. The Crusade finished without quite the glorious victory that it had started out being in Transylvania.
Carlo took out his frustration on Hungarian nobles rebelling against his Medici cousin on his way back to Tuscany. Having made an enemy of Poland, Carlo secured his marriage to a Russian princess in the hopes of forging a future ally against Poland and the Muslim Turks, though this never fully panned out.
A Heavy Crown
For the next few years, Carlo focused his attention inward, as he built more infrastructure to unite his domains, including establishing the first national postal system. But his ambition for conquest was never satisfied. By 1629, Carlo had convinced the new Emperor, Joseph Ludwig I, that the Habsburgs intended to annex their Milanese vassal. Intent on strengthening the Imperial crown's authority, Joseph was convinced, and agreed to declare war on Austria with the goal of liberating Milan, a decision that would prove to accomplish just the opposite.
Both Spain and France came to the Habsburgs' aid against their Protestant enemies, and religious war once again engulfed most of western Europe.
As the Spanish fleet and the French army mobilized, the Tuscan armies under Carlo marched into the Duchy of Milan. With 11,000 men, the Duke knew he could not defeat Carlo but hoped to tie him down long enough for the Habsburgs to lay waste to northern Italy or the Spanish to destroy Tuscan shipping. Unfortunately for him, Carlo caught the Milanese army at night, camping near Pavia. Forcing them into a hasty retreat, they were led into a trap, and the entire army was killed or captured. Milan fell in less than a month.
The French once again poured into the Franch-Comte and the Netherlands as most of the Bavarian army was tied up fighting Austria. With the quick defeat of Milan and most of the Austrians distracted, Carlo marched through northern Italy while his generals led a second army into Tyrolia. Carlo soon defeated the main Habsburg army and Austria was all but defeated, but the French continued to overrun the Bavarian Netherlands.
Meanwhile Ferraran Catholic guerrilas hampered Carlo's supply trains from Tuscany. Carlo convinced the Emperor to declare war on Ferrara as well, with the goal of re-establishing Protestant Modena. This brought the rest of Catholic Italy (minus Sardinia) into the war.
Pulling most of his forces south to invade Ferrara, Carlo left Emperor Joseph to finish off Austria. This allowed the Habsburgs to regroup and form another army, which succeeded in attacking into Bavaria itself. Completely unable to defend his Imperial Demesne and wanting to focus on Austria, the French were able to negotiate a quick exit with the Emperor, leaving the Netherlands in exchange for adding Franche-Comte to the French Crown.
The Ferraran war was slow going. The walls of Modena and Ferrara had been heavily strengthened over the years and their troops were dug in. Spanish and Genoese fleets blockaded Tuscany, and small armies continously harassed Parma and the coastal cities of Pisa, Siena, and Rome.
By the summer of 1631, however, the war was decided. Now fully focused on Austria, the Emperor had crushed their army and was pushing on Vienna. The Ferraran forts began to surrender one by one and the Spanish blockade and raiding parties were proving ineffective as the Spanish struggled to maintain their worldwide empire.
In July of 1632, having been decisively defeated, Austria and Ferrara agreed to come to terms. With Bavaria still in flames from Austrian plunder, Carlo ignored the battered and weak Emperor's protests as he annexed Lombardia and Modena and plundered the Ferraran treasury.
Now fully in control of his own destiny, the Empire and Europe watched in shock as Carlo seized the Iron Crown in Milan and crowned himself King of Italy on September 3, 1632. The Emperor declared Carlo an outlaw and enemy of the Empire, but it didn't matter. After years of war, only Carlo's Italy and Louis XIV's France were in any condition to fight, and for the moment, Louis was enjoying watching the Empire go down in flames.
The World, at Carlo I's coronation as King of Italy, 1632
My Take the Iron Crown decision requires owning (or vassalizing the owner of) Milan, being Italian culture, and being a Major Power (kingdom-level). It grants cores on the areas surrounded by the red line below (basically Imperial Italy + Sardinia & Istria - I have taken Istria out since this playthrough for the submod I intend to release). Only Milan and Modena I had not cored yet. However it also kicks you out of HRE, some infamy, and massive relations hit with virtually everybody. My Grant the Iron Crown decision is much more restrictive and requires legitimacy/infamy/relations with Emperor etc but is a bit more peaceful.