Iron Crown of Lombardy, used in Italian coronations from the Lombard era to the 19th century
King of Italy (rex Italiae in Latin and re d'Italia in Italian) is a title adopted by many rulers of the Italian peninsula after the fall of the Roman Empire. Until 1870, however, no “King of Italy” ruled the whole peninsula, though some pretended to such authority.
This state of affairs did not last long. In 568, the Lombards entered the peninsula and ventured to recreate a barbarian kingdom in opposition to the Empire, establishing their authority over the whole of Italy (especially Lombardy) except the Exarchate of Ravenna and the duchies Rome, Venetia, Naples and the southernmost portions. For the next two centuries, Lombards and Byzantines fought for dominance in the peninsula.
In the 8th century, estrangement between the Italian Romans and the Byzantine Empire allowed the Lombards to capture the remaining Roman enclaves in northern Italy. However, in 774, they were defeated by the Franks under Charlemagne, who deposed their king and took up the title rex Langobardorum ("King of the Lombards"). Within the Frankish Empire, Italy was ruled by a rex Italiae. This Kingdom of Italy was integrated into the Holy Roman Empire by Otto I. All subsequent emperors used the title and most were crowned at some time in the ancient Lombard capital of Pavia before their imperial coronation in Rome.
In 951Otto I of Germany invaded Italy and was crowned "King of the Lombards". In 952, Berengar and Adalbert became in vassals but remained Kings until being deposed by Otto.
[Name], by the Grace of God, King of Italy, King of Sardinia, Cyprus, Jerusalem, Armenia, Duke of Savoy, Count of Maurienne, Marquis (of the Holy Roman Empire) in Italy; Prince of Piedmont, Carignano, Oneglia, Poirino, Trino; Prince and Perpetual vicar of the Holy Roman Empire; prince of Carmagnola, Montmellian with Arbin and Francin, Prince bailliff of the Duchy of Aosta, Prince of Chieri, Dronero, Crescentino, Riva di Chieri e Banna, Busca, Bene, Brà, Duke of Genoa, Montferrat, Aosta, Duke of Chablais, Genevois, Duke of Piacenza, Marquis of Saluzzo (Saluces), Ivrea, Susa, del Maro, Oristano, Cesana, Savona, Tarantasia, Borgomanero e Cureggio, Caselle, Rivoli, Pianezza, Govone, Salussola, Racconigi con Tegerone, Migliabruna e Motturone, Cavallermaggiore, Marene, Modane e Lanslebourg, Livorno Ferraris, Santhià Agliè, Centallo e Demonte, Desana, Ghemme, Vigone, Count of Barge, Villafranca, Ginevra, Nizza, Tenda, Romont, Asti, Alessandria, del Goceano, Novara, Tortona, Bobbio, Soissons, Sant'Antioco, Pollenzo, Roccabruna, Tricerro, Bairo, Ozegna, delle Apertole, Baron of Vaud e del Faucigni, Lord of Vercelli, Pinerolo, della Lomellina, della Valle Sesia, del marchesato di Ceva, Overlord of Monaco, Roccabruna and 11/12th of Menton, Noble patrician of Venice, patrician of Ferrara.