Kingdom of Italy (medieval) in the context of "Via Imperii"

Conrad II (German: Konrad II, c. 990 – 4 June 1039), also known as Conrad the Elder and Conrad the Salic, was the emperor of the Holy Roman Empire from 1027 until his death in 1039. The first of a succession of four Salian emperors, who reigned for one century until 1125, Conrad ruled the kingdoms of Germany (from 1024), Italy (from 1026) and Burgundy (from 1033).

The son of Franconian count Henry of Speyer (also Henry of Worms) and Adelaide of Metz of the Matfriding dynasty, that had ruled the Duchy of Lorraine from 959 until 972, Conrad inherited the titles of count of Speyer and Worms during childhood after his father had died around the year 990. He extended his influence beyond his inherited lands, as he came into favour of the princes of the kingdom. When the imperial dynastic line was left without a successor after Emperor Henry II's death in 1024, on 4 September an assembly of the imperial princes appointed the 34-year-old Conrad king (Rex romanorum).

Henry VII (German: Heinrich; Vulgar Latin: Arrigo; 1275 or 1278/79 – 24 August 1313), also known as Henry of Luxembourg, King of Germany and King of Italy numbering is Heinrich VIII, was Count of Luxembourg, King of Germany (Rex Romanorum) from 1308 and Holy Roman Emperor from 1312. He was the first emperor of the House of Luxembourg. During his brief career he reinvigorated the imperial cause in Italy, which was racked with the partisan struggles between the divided Guelph and Ghibelline factions, and inspired the praise of Dino Compagni and Dante Alighieri. He was the first emperor since the death of Frederick II in 1250, ending the Great Interregnum of the Holy Roman Empire; however, his premature death threatened to undo his life's work. His son, John of Bohemia, failed to be elected as his successor, and there was briefly another anti-king, Frederick the Fair, contesting the rule of Louis IV.

The history of the papacy from 1046 to 1216 was marked by conflict between popes and the Holy Roman Emperor, most prominently the Investiture Controversy, a dispute over who— pope or emperor— could appoint bishops within the Empire. Henry IV's Walk to Canossa in 1077 to meet Pope Gregory VII (1073–85), although not dispositive within the context of the larger dispute, has become legendary. Although the emperor renounced any right to lay investiture in the Concordat of Worms (1122), the issue would flare up again.

The Imperial crown once held by the Carolingian emperors was disputed between their fractured heirs and local overlords; none emerged victorious until Otto I, Holy Roman Emperor invaded Italy. Large parts of northern and central Italy became a constituent kingdom of the Holy Roman Empire in 962, from which point emperors were Germanic. As emperors consolidated their position, northern Italian city-states would become divided by Guelphs and Ghibellines.