The reign of Friederich V and Maximilian I: 1477-1493
The inheritance of Burgundy and conquests in Mediterranean enlarged the Habsburg domain beyond imaginable. Their lands now stretched from the Northern Sea to the shores of Africa and ruling such a decentralized state was a management nightmare. The Emperor quickly found a solution - he made his son Maximilian a co-ruler and concentrated his efforts on consolidating the gains in Italy. Maximilian moved his residence to the Netherlands where he ruled with the help of his wife Mary of Burgundy. He commanded some 27,000 troops and even had a small fleet of 3 warships and 1 transport.
Meanwhile, while Austria was busy fighting Aragon, France made a huge leap forward and in a series of wars conquered most of geographical France. England still had Normandy, Caux, Poitou and Gascogne, but constant rebellions did not make her position in France any stronger. After all, French had already invaded Kent in the previous war and the Channell was no longer an obstacle for their navy. True, French only had asked for Calais, but it did not mean they would be satisfied with the status quo for long.
In 1479 Brittany revolted against Scots for the fourth time. Scotland was abandoned by her Iberian allies (Spain, Aragon and Portugal) and managed to hold on only to Bretagne province. Brittany was again vassalized, but then French claimed the duchy theirs and annexed it few years later.
Norwegians were the fifth (after France, England, Denmark and Poland) foreign power to invade the Empire. In the fall of 1479 they annexed Friesland and fought an indecisive war with English. Lorraine, which too used to belong to Spanish alliance, left it after Brittany's crisis, and was welcomed with open arms to the Emperor's camp. This came right after Friederich successfully negotiated the incorporation of Bavaria into Habsburg domain. The Prince of Bavaria lost his son in Italy and, having no heirs, chose to name his suzerain an heir instead of watch his lands explode in a civil war. Some 40,000 troops were disbanded, but even then the Imperial army numbered some 80,000 men (around 15,000 cavalry). The combined Northern and Mediterranea fleets consisted of 8 warships, 8 galleys and 1 transport.
French kept on expanding and annexed Eire in 1481. Norway conquered Holstein, but was forced to cede it to Bremen. A series of wars errupted in northern Germany, but no provinces changed hands except for Palatinate conquering Cologne.
In 1485 France started another war with England in an attempt to rid all French lands of English influence once and for all. French enjoyed the support of Bremen, Hanover and Saxony (all in theory Austrian vassals), while English called on Munster, Kleves and Palatinate (again, all vassals to Friederich as the Emperor of the Holy Roman Empire). It seemed like both countries were shamlessly using Friederich's subjects to pursue their own ambitions. Munster was annexed by Hanover soon, for which Austrians shed no tears as it used to fight on the same side as Aragon in war of 1462-1477.
It was impossible for Friederich and Maximilian to stand out of the conflict. For once, the war was fought on the Imperial soil. Then again, France ruled over two provinces that Maximilian claimed through marriage to Mary, Duchess of Burgundy. They were Artois and French Comte. Friederich too had long wanted to punish France for conquering Savoy - which belonged to the Empire until 1451. French victory over England would be sad news for Empire too - being so decentralized and unorganized, the Empire had no need for a strong neighbour like France.
The war was inevitable and the formal declaration was delivered to Paris on July 27, 1485.
All Habsburg allies - Wurtemburg, Milan, Genoa and Lorraine - joined the call of the Emperor. At first all French allies dishonored their obligations, but then Bremen and Hanover were pursuaded to join the war on the French side.
Friederich had some 35,000 men ready for invasion in Piemonte. They crossed the border unopposed in two directions - one army entered Savoy, another went on covering all southern French provinces to make it impossible for Louis XI to raise troops there.
Maximilian invaded France from the north and very soon found himself in control of Calais and Picardie. Avoiding large French armies, which at the start of war were either in Normany or on the right bank of Rhine, he proceeded to defeat smaller French armies and, with help from English, laid siege to Paris.
Gelre joined the anti-French coalition in early 1486 and served as distraction for couple of French armies. Wurtemburg and Milan both send troops to besiege Artois, while Genoa sent an expedition to French Ireland. Friederich and Maximilian felt confident the war would be over in six months.
Then Milan declared war on Mantua. With no forces left back in the east, Austrians were unable to aid their vassal. Wurtemburg and Genoa offered help, but in August of 1486 Naples declared war on Genoa. Wurtemburg army failed to defeat capture Mantua on time and in September of 1486 Milan was sacked by combined armies of Mantua and Venice. Few days later the city-state was annexed by the former.
Friederich was mad at himself for thinking Milan would hold out longer. Now, when the situation in the southern France was under control, he managed to send 7,000 cavalry back east and ordered 10,000 infantry recruited in Austria. Meanwhile, Paris was captured by English and so was Champage. England preferred not to ask for land and settle for gold. Once the settlement was reached, Paris was besieged anew by Imperial forces, while Lorraine invaded Champagne.
By 1488 Austrians fought numerous battles with Mantua - having won some and lost others. Bremen invaded the province of Wurzburg, while Hanover occupied Alsace. Naples captured Rome, but fortunately Genoa agreed to part with 50,000 ducats to make peace in the south. Outside of this war, Isabel and Ferdinand of Castille and Aragon decided to rule together and unite their kingdoms. Newly found kingdom - Spain - ruled all of Iberia, except for the kingdom of Portugal.
In May of 1489 the war with Mantua was over. The enemy managed to capture Tirol and Romagna, but not for long. Milan was liberated too and Mantua sacked. In exchange for peace, the city was forced to cede Milan and pay 100,000 ducats.
Meanwhile, France had presented scores of peace proposals, offering six or seven provinces each time. If accepted, this kind of peace would bring only trouble to Austria in future. All Friederich and Maximilian wanted was French-Comte and Savoy for Austria, Artois for Wurtemburg and Champagne for Lorraine. French kept refusing and, in order to force it out of them, Austrians had to conquer all of France. The plan looked easy enough on paper (since Imperial forces already controlled 90% of France at the time), but French had different ideas. Numerous rebellions prolonged the conquest for yet another couple of years, while peasants in Bavaria and Milan contributed their share of trouble as well.
In 1491 French bought Genoa off with the province of Connaught and Wurtemburg accepted peace in exchange for Artois.
In July of 1493 Austrian goal seemed so close when rebels in Ile-de-France massacred Austrian garrison in Paris. In took another two months to re-conquer the city. By August 4th all of France was in Austrian hands. The peace was made with French ceding Champagne, Savoy and French Comte and paying 400,000 in war indemnities. Friederich did not have enough time to celebrate the victory - he died 17 days later. On August 21st Maximilian became a sole ruler of Austria. The same day the Electors of the Holy Roman Empire gave Ferdinand and Isabel of Spain the Imperial crown.
NOTE: Habsburg banners all over France.
Elsewhere in Europe: the Ottomans managed to conquer Bulgaria, but received quite a beating from Serbia and Bosnia. Moldova lost two provinces to Hungary and Croatia. Muscowy annexed Suzdal, Novgorod and conquered deep into the lands of Teutonic Order. North Africa was divided between Algiers and Tunisia.
The loss of Imperial crown was a high price to pay for two Imperial provinces. What Friederich and Maximilian did not take into account when going at war with France is that the rest of the Electors might not like the idea of Habsburgs grabbing province after province within and outside the Empire's borders. Failure to compensate their patience in the past was the main reason Maximilian did not get the Imperial crown. The warrior-emperor Friederich V is dead, and his son will have to turn to diplomacy to gain back the throne.