an Entity in Data Space: 134.155.108.49:8890
Before his royal election, he was by inheritance Duke of Swabia (1147–1152, as Frederick III). He was the son of Duke Frederick II of the Hohenstaufen dynasty. His mother was Judith, daughter of Henry IX, Duke of Bavaria, from the rival House of Welf, and Frederick therefore descended from Germany's two leading families, making him an acceptable choice for the Empire's prince-electors.
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