In 951, King
Otto I of Germany married
Adelaide of Burgundy, the widow of late King
Lothair II of Italy. Otto was proclaimed king of Italy at
Pavia despite his rival Margrave
Berengar of Ivrea. In 952,
March of Verona was annexed by the
Duchy of Bavaria and remained part of the Kingdom of Germany until its disintegration. When in 960 Berengar attacked the
Papal States, King Otto, summoned by
Pope John XII, conquered the Italian kingdom and on 2 February 962 had himself crowned
Holy Roman Emperor at Rome. From that time on, the Kings of Italy were always also Kings of Germany, and Italy thus became a constituent kingdom of the
Holy Roman Empire, along with the
Kingdom of Germany () and – from 1032 –
Burgundy. The
German king () would theoretically be crowned in Pavia as a prelude to the visit to Rome to be
crowned Emperor by the
Pope. , where almost all the kings of Italy were crowned up to
Frederick Barbarossa. In general, the monarch was an absentee, spending most of his time in Germany and leaving the Kingdom of Italy with little central authority. There was also a lack of powerful landed magnates – the only notable one being the
Margraviate of Tuscany, which had wide lands in
Tuscany,
Lombardy, and the
Emilia, but which failed due to lack of heirs after the death of
Matilda of Canossa in 1115. This left a power vacuum – increasingly filled by the Papacy and by the bishops, as well as by the increasingly wealthy Italian cities, which gradually came to dominate the surrounding countryside. Upon the death of Emperor
Otto III in 1002, one of late Berengar's successors, Margrave
Arduin of Ivrea, even succeeded in assuming the Italian crown and in defeating the Imperial forces under Duke
Otto I of Carinthia. Not until 1004 could the new German King
Henry II of Germany, by the aid of Bishop
Leo of Vercelli, move into Italy to have himself crowned . Arduin ranks as the last domestic "King of Italy" before the accession of
Victor Emmanuel II in 1861. Henry's
Salian successor
Conrad II tried to confirm his dominion against Archbishop
Aribert of Milan and other Italian aristocrats (). While besieging
Milan in 1037, he issued the in order to secure the support of the
vasvassores petty gentry, whose
fiefs he declared hereditary. While Conrad stabilised his rule, however, the Imperial supremacy in Italy remained contested.
Staufer during the
battle of Legnano by
Amos Cassioli (1832–1891) The cities first demonstrated their increasing power during the reign of the
Hohenstaufen Emperor
Frederick Barbarossa (1152–1190), whose attempts to restore imperial authority in the peninsula led to wars with the
Lombard League, a league of northern Italian cities, most of the times headed by
Milan, and ultimately to a decisive victory for the League at the
Battle of Legnano in 1176, that had as its leader the Milanese
Guido da Landriano, which forced Frederick to make administrative, political, and judicial concessions to the municipalities, officially ending his attempt to dominate Northern Italy. From then, Italy became a patchwork of autonomous duchies and city-states only nominally tied to the Holy Roman Empire. The scene was similar to that which had occurred between
Pope Gregory VII and
Henry IV, Holy Roman Emperor at
Canossa a century earlier. The conflict was the same as that resolved in the
Concordat of Worms. Did the Holy Roman Emperor have the power to name the pope and bishops? The
Investiture controversy from previous centuries had been brought to a tendentious peace with the Concordat of Worms and affirmed in the
First Council of the Lateran. Now it had recurred, in a slightly different form. Frederick had to humble himself before
Pope Alexander III at Venice. The emperor acknowledged the pope's sovereignty over the Papal States, and in return Alexander acknowledged the emperor's overlordship of the Imperial Church. Also in the
Treaty of Venice, a truce was made with the Lombard cities, which took effect in August 1178. The grounds for a permanent peace were not established until 1183 in the
Peace of Constance, when Frederick conceded their right freely to elect town magistrates. By this move, Frederick recovered his nominal domination over Italy, which became his chief means of applying pressure on the papacy. Frederick's son
Henry VI managed to extend Hohenstaufen authority in Italy by his conquest of the Norman
Kingdom of Sicily, which comprised Sicily and all of Southern Italy. Henry's son,
Frederick II, Holy Roman Emperor – one of the greatest monarchs of the Middle Ages and the first emperor since the 10th century to actually base himself in Italy – attempted to return to his father's task of restoring imperial authority in the northern Italian Kingdom. This incurred fierce opposition from a reformed Lombard League and from the Popes, who had become increasingly jealous of their temporal realm in central Italy (theoretically a part of the Empire), and concerned about the hegemonic ambitions of the Hohenstaufen emperors. Frederick II was one of the most powerful figures of the Middle Ages and ruled a vast area, beginning with the kingdom of Sicily in the south and stretching through Italy all the way north to Germany. Given the appellation ('Wonder of the World') by contemporaries, he was figure of vast ambitions and manifold ability, and seemed to view himself as a direct successor to the
Roman emperors of antiquity. Frederick would prove the most formidable, dynamic, and imaginative architect of an administratively unified Italian state until the mid-19th century. In the Kingdom of Sicily he built upon the work of his Norman predecessors and forged an early absolutist state bound together by an efficient secular bureaucracy. Frederick's firm grip on his southern kingdom would survive invasion, conspiracy, excommunications, and war with his enemies in Lombardy and the papacy. Basing himself in the
Regno, the emperor could call also on a powerful source of wealth and manpower unprecedented among his predecessors to press his ambitions in northern Italy. In 1237, Frederick II won a crushing victory over the Lombard League at the
Battle of Cortenuova and imperial power in Lombardy appeared more powerful than ever. Despite his perennial conflict with the papacy and a few remaining stubborn Lombard cities, Frederick remained in a commanding overall position. From 1240, in an edict issued at Foggia, Frederick II was determined to push through far-reaching reforms to establish the Sicilian kingdom and Imperial Italy as a unified state bound by a centralized administration. He had already appointed his son
Enzo of Sardinia as Legate General for all of Italy in the previous year and he now appointed several imperial vicars and captains-general to govern the provinces. The function of the imperial vicars as military commanders and regional governors chosen for their loyalty and competence has been compared to Napoleonic marshals, and Frederick proactively supervised his cadre of officials. Frederick also placed loyal Sicilian barons as podestàs over the subject cities of northern and central Italy. The unified administration was taken over directly by the emperor and his highly trained Sicilian officials whose jurisdiction now ranged across all of Italy. Henceforth, the new High Court of Justice would be supreme in both the Kingdom of Sicily and Imperial Italy. A central exchequer was established at Melfi to oversee financial management. Frederick also made efforts towards regulating education, commerce, and even medicine, similar to his earlier reforms in Sicily. For the rest of his reign, there was a continuous movement toward the extension and perfection of this new unified administrative system, with the Emperor himself as the driving force. Despite his mighty efforts however, Frederick's newly unified Italian state ultimately proved ephemeral. When he died in December 1250, in spite of setbacks at the
Battle of Parma and the
Battle of Fossalta during the previous two years, imperial power throughout Italy remained considerable and strong, and the emperor was in the ascendant against his enemies once again. Frederick's unified imperial Italo-Sicilian regime broadly controlled the regions of Tuscany, Ancona, Spoleto, Piedmont, the Romagna, and most of Lombardy, as well as all of southern Italy. The remaining pro-Guelph cities in the north proved difficult to assault behind networks of defensive works, however, and resistance to imperial rule persisted. Even with imperial successes and the broad recovery of areas lost to the Guelphs in the previous two years, the conflict was locked in stalemate. Yet, so long as the great emperor lived, his legendary status and pre-eminence in Europe seemed like it could sustain the imperial cause. The collapse of the Hohenstaufen came after the emperor's death. Robbed of his genius for state-building in its formative years, and struck by crises in the reigns of his successors, Frederick's work did not long survive him and Italian unification stalled until the 19th century. Nevertheless, the vicars and captains-general provided the prototype for the great Signori who dominated Italy in later generations and centuries. Each, such as
Charles of Anjou, the Neapolitan kings
Robert,
Ladislaus, and
Ferrante of Naples, or the
Visconti in Milan, were in many ways aspiring Italian hegemons in Frederick's image, claiming for themselves a measure of his awesome prestige and might—some even continued to claim the title of imperial vicar. Not until the eras of
Emperor Charles V and, later,
Napoleon would a single ruler so dominate all of Italy.
Decline The Italian campaigns of the Holy Roman emperors decreased, but the kingdom did not become wholly meaningless. In 1310 the
Luxembourg King
Henry VII of Germany with 5,000 men again crossed the Alps, moved into Milan and had himself crowned king of Italy (with a mock-up of the
Iron Crown), sparking a Guelph rebellion under Lord
Guido della Torre. Henry restored the rule of
Matteo I Visconti and proceeded to Rome, where he was crowned emperor by three cardinals in place of
Pope Clement V in 1312. His further plans to restore the Imperial rule in northern Italy and to expand the empire, invading the
Kingdom of Naples, were aborted by his sudden death the next year. Successive emperors in the 14th and 15th centuries were bound in the struggle between the rivaling Luxembourg,
Habsburg and
Wittelsbach dynasties. In the conflict with
Frederick the Fair, King
Louis IV (reigned until 1347) had himself crowned emperor in Rome by
Antipope Nicholas V in 1328. His successor
Charles IV also returned to Rome to be crowned in 1355. None of the emperors forgot their theoretical claims to dominion as kings of Italy. Nor did the Italians themselves forget the claims of the emperors to universal dominion: writers like
Dante Alighieri (died 1321) and
Marsilius of Padua () expressed their commitment both to the principle of universal monarchy, and to the actual pretensions of Emperors Henry VII and Louis IV, respectively. The Imperial claims to dominion in Italy mostly manifested themselves, however, in the granting of titles to the various strongmen who had begun to establish their control over the formerly republican cities. Most notably, the emperors gave their backing to the
Visconti of Milan, and King
Wenceslaus made
Gian Galeazzo Visconti the
duke of Milan in 1395. Other families to receive new titles from the emperors were the
Gonzaga of
Mantua, and the
Este of
Modena and Reggio.
Imperial fiefs in the modern period By the beginning of the early modern period, the Kingdom of Italy still formally existed but had
de facto splintered into completely independent and self-governing
Italian city-states. Its territory had been significantly limited – the conquests of the
Republic of Venice in the "
domini di Terraferma" and those of the
Papal States had taken most of northeastern and central Italy outside the jurisdiction of the Empire. In many aspects, the Imperial claims to feudal overlordship over the Italian territories had become practically meaningless: the effective political authority, as well as the power to raise taxes and spend resources, was in the hands of the Italian princes and dukes. However, the presence of the Imperial feudal network in Italy continued to play a role in the history of the peninsula. It gave to Emperors
Sigismund and
Maximilian I the pretext to intervene in Italian affairs. Furthermore, the Imperial rights were notably asserted during the
Italian Wars by Charles V (also king of
Spain, Naples and archduke of
Austria). He drove the French from
Milan after the
Battle of Pavia, and prevented an attempt by the Italian princes, with French aid, to reassert their independence in the
League of Cognac. His mutinous troops
sacked Rome and, coming to terms with the
Medici Pope Clement VII, conquered Florence where he reinstalled the Medici as
dukes of Florence after
a siege. Charles V was
crowned king of Italy with the
Iron Crown in medieval fashion and, upon the extinction of the
Sforza line of Milan in 1535, claimed direct possession of that territory as an Imperial fief. After Charles divided his possession between a Spanish and Austrian branch, Milan became a possession of the
Spanish Empire of Charles's son
Philip II of Spain, whereas the title of Holy Roman Emperor and the rights connected to Imperial Italy were transferred to Charles's brother,
Ferdinand I. Milan continued to be a state of the Holy Roman Empire so that, in his position as
duke of Milan, Philip II was, at least formally, a vassal of Emperor Ferdinand. However, following the reign of Charles V, no Holy Roman Emperor of the Austrian Habsburgs was crowned king of Italy and the title effectively ceased to be used for two centuries and a half. In 1559, the Kingdom of France ended its ambitions over the Imperial fiefs in Italy, abandoning its claims to Savoy and Milan and withdrawing from Tuscany and Genoese Corsica by the terms of the
Treaty of Cateau-Cambrésis. The major imperial fiefs in Italy were known as "Feuda latina", whereas the smaller ones were known as "Feuda Minora". Italian princes did not send representatives to the
Imperial Diet, but their forces also joined the
Imperial Army, as in the case of the
Hungarian campaign of
Maximilian II against
Suleiman the Magnificent in 1566. While they were excluded from the Reichstag, the Italian states were still considered vassals of the emperor, like other states of the empire, and thus subject to certain obligations and jurisdiction. A special Italian section of the
Aulic Council (one of the two supreme courts of the Empire) was created in 1559. It handled 1,500 cases from Imperial Italy between 1559 and 1806 (out of 140,000 total), with most of those cases coming from later dates. Italian states provided significant support in all of the Empire's wars in this time, either under their own princes or as part of the Habsburg territories (such as the
Imperial Free City of Trieste, the
County of Gorizia and Gradisca, the
Duchy of Milan, and later the
Grand Duchy of Tuscany). Unlike most of the German states, the Imperial Italian contributions bypassed the Reichstag and other institutions and went directly to the Imperial army and treasury. The Italian states were in large part autonomous, but their lack of representation gave the emperor greater ability to act more autonomously with the Italian principalities than the German ones, such as when he decided to simply add the Grand Duchy of Tuscany (officially an imperial fief) to his family's lands after the extinction of the Medici ruling line in 1737. Aside from the
Prince-Bishopric of Trent,
Piedmont-Savoy was the only independent Italian state represented in the Reichstag and also the only one to be part of the circle system (being within the
Upper Rhenish Circle; the Habsburg possessions of Trieste and Gorizia-Gradisca were within the
Austrian Circle, as was Trent). Thus despite being opposed to the Habsburg family, it still emphasized its imperial privileges to establish itself as suzerain over smaller surrounding lordships. In 1713 the dukes of Savoy also became kings through their holdings outside the Empire (first gaining the
Kingdom of Sicily in 1713, swapped in 1720 for the
Kingdom of Sardinia). Imperial authority was used by the Austrian Habsburgs to intervene in Italy during the
War of Mantuan Succession phase of the
Thirty Years' War and to take control of vacant Italian imperial fiefs during the European Wars of Succession of the 18th century: following the extinction of the Spanish Habsburgs in 1700, the emperor proclaimed Milan a vacant Imperial fief and added it to his direct Austrian dominions in 1707 (confirmed by the
Treaty of Rastatt at the end of the
War of the Spanish Succession); the
Gonzaga of Mantua were deposed by the Imperial Diet in 1708 on charges of
felony towards the Holy Roman Emperor; following the extinction of the Florentine House of Medici in 1737,
Francis of Lorraine was invested with the Grand Duchy of Tuscany by Imperial diploma; a similar use of Imperial rights allowed the Habsburgs to assert sovereignty over the
Duchy of Parma between 1735 and 1748, although this caused a dispute with the Papacy, which claimed it as a
Papal fief. Emperor Leopold I increasingly asserted his rights over the imperial fiefdoms of Italy from the 1660s with the decline of Spanish power and more overt intervention of the French. In 1687, a new plenipotentiary of Italy was appointed, a position that had been left vacant for over a century prior (the powers of the office had instead been exercised haphazardly by the Aulic Council). In 1690,
Prince Eugene of Savoy tried to levy an imperial tax over Italy to pay for war expenses, the first time such a thing had been done. Then, in 1696, Leopold issued an edict mandating all of his Italian vassals to renew their oaths of allegiance within a year and a day on pain of forfeit. The renewal of fiefdoms incensed the papacy, some of whose own vassals now dug out ancient documents ostensibly proving them to be vassals of the Emperor. Smaller states of Italy saw the Emperor as their protector against larger territories like Savoy and the papacy. Imperial authority strengthened throughout the 18th century, with the duchies of Milan and Mantua passing to the Habsburg family as vacant imperial fiefs during the War of the Spanish Succession, the end of the
War of the Quadruple Alliance reconfirming the statuses of Tuscany,
Modena-Reggio, and
Parma-Piacenza as imperial fiefs, and the Habsburgs continuing to rule the Italian territories of
their hereditary lands (roughly the modern provinces of
Trentino-Alto Adige and the
Austrian Littoral).
Piedmont-Savoy, on the other hand, mostly remained defiant of Habsburg authority despite the duke receiving the title of "Royal Highness" from the Emperor in 1693, but still recognized the Empire as a valid institution and
officially participated in the diet.
Dissolution The status of Imperial Italy was more or less stable up to 1789. There was even a serious push by the Savoyards (backed by
Prussia) to raise Savoy to
electorate status in 1788, which would make it only the second non-German state to become so (after
Bohemia, which was after the
crushing of Bohemian estates in 1620 dominated by German-speaking aristocrats). This came to nothing as the
French Revolution of 1789 would quickly shatter the old order. During the
French Revolutionary Wars, the Austrians were
driven from Italy by Napoleon Bonaparte, who set up
republics throughout northern Italy, and by the
Treaty of Campo Formio of 1797, Emperor
Francis II relinquished any claims over the territories that made up the Kingdom of Italy. The
imperial reorganization carried out in 1799–1803 left no room for Imperial claims to Italy – even the
Archbishop of Cologne was gone,
secularized along with the other ecclesiastical princes. Napoleon's victory in the
War of the Second Coalition saw this reconfirmed in the
Treaty of Lunéville. In 1805, while the Holy Roman Empire was still in existence, Napoleon, by now
Emperor of the French as Napoleon I, claimed the crown of the new
Kingdom of Italy for himself, putting the
Iron Crown on his head at
Milan on 26 May 1805. He also directly annexed most of the former Imperial Italy (including Piedmont-Savoy,
Genoa and Tuscany) into France. The Empire itself
was abolished the next year on 6 August 1806. The
Congress of Vienna following Napoleon's defeat did not bring back the Holy Roman Empire nor the Kingdom of Italy, and the restored Italian kingdoms and duchies now either became fully sovereign in their own right or became a part of the newly-declared
Austrian Empire (which also
annexed the former Venetian Republic).
Demographics == See also ==