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
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).
The Duchy of Bavaria was a frontier region in the southeastern part of the Merovingian kingdom from the sixth through the eighth century. It was settled by Bavarian tribes and ruled by dukes under Fra
Coat of Arms of the House of Welf
The Bavarian Square banner in the Wappenbuch des St. Galler Abtes Ulrich Rösch, 15th century