With the death of Frederick II, Duke of Austria, the Babenberg dynasty ends in Austria.

Frederick II, known as Frederick the Quarrelsome, was Duke of Austria and Styria from 1230 until his death. He was the fifth and last Austrian duke from the House of Babenberg, since the former margraviate was elevated to a duchy by the 1156 Privilegium Minus. He was killed in the Battle of the Leitha River, leaving no male heirs.

The House of Babenberg was a noble dynasty of Austrian Dukes and Margraves. Descending from the Popponids and 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.