Frederick Barbarossa Elected King of the Romans
On March 4, 1152, the princes of the Holy Roman Empire elected Frederick I, later known as Barbarossa, as King of the Romans at Frankfurt. His election followed the sudden death of his uncle King Conrad III and represented a compromise between rival dynastic factions. Barbarossa spent much of his reign trying to restore imperial authority in Germany and Italy, leading multiple Italian campaigns and negotiating with popes and city-states. His rule left a lasting imprint on medieval ideas of empire and kingship in central Europe.