The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages and lasted for almost 1,000 years until its dissolution in 1806 during the Napoleonic Wars.
The double-headed eagle with coats of arms of individual states, the symbol of the Holy Roman Empire (painting from 1510)
The Holy Roman Empire during the Ottonian dynasty
Henry begging Matilda of Tuscany and Hugh of Cluny in Canossa Castle (miniature in an illuminated manuscript kept in the Vatican Library, 1115)
Frederick Barbarossa, Holy Roman Emperor
The Holy Roman Emperor, originally and officially the Emperor of the Romans during the Middle Ages, and also known as the Roman-German Emperor since the early modern period, was the ruler and head of state of the Holy Roman Empire. The title was held in conjunction with the title of king of Italy from the 8th to the 16th century, and, almost without interruption, with the title of king of Germany throughout the 12th to 18th centuries.
Longest reigning Frederick III 19 March 1452 – 19 August 1493
Coats of arms of prince electors surround the imperial coat of arms; from a 1545 armorial. Electors voted in an Imperial Diet for a new Holy Roman Emperor.
Depiction of Charlemagne in a 12th-century stained glass window, Strasbourg Cathedral, now at Musée de l'Œuvre Notre-Dame.
Illustration of the election of Henry VII (27 November 1308) showing (left to right) the Archbishop of Cologne, Archbishop of Mainz, Archbishop of Trier, Count Palatine of the Rhine, Duke of Saxony, Margrave of Brandenburg and King of Bohemia (Codex Balduini Trevirorum, c. 1340).