Frederick I, Duke of Austria (Babenberg)
Frederick I, known as Frederick the Catholic, was the Duke of Austria from 1195 to 1198. He was a member of the House of Babenberg.
Frederick I on a 13th century stained glass window in Heiligenkreuz Abbey
Frederick I in the German Crusade of 1197, Babenberger Stammbaum, Klosterneuburg Monastery, 1489–1492
The House of Babenberg was a noble dynasty of Austrian Dukes and Margraves. Originally from Bamberg in the Duchy of Franconia, the Babenbergs ruled the imperial Margraviate of Austria from its creation in 976 AD until its elevation to a duchy in 1156, and from then until the extinction of the line in 1246, whereafter they were succeeded by the House of Habsburg, to which they were related.
The Babenberg family tree triptych at Klosterneuburg Monastery (c. 1490, based on the genealogy by Ladislaus Sunthaym)