. . "no"@en . . "Frederick II (, 25 April 1211 \u2013 15 June 1246), known as Frederick the Quarrelsome (), was the Duke of Austria and the Duke of Styria from 1230 to his death in 1246. He was the fifth and last Duke of Austria from the House of Babenberg."@en . "Frederick II, Duke of Austria"@en . . "Frederick II"@en . . . . "Duke of Austria, Duke of Styria"@en . . . . . "1211-04-25"^^ . . "Frederick the Quarrelsome killed at the Battle of the Leitha River, Babenberger Stammbaum, Klosterneuburg Monastery, 1489\u20131492"@en . "2"^^ . . . . "1246-06-15"^^ . . "Nobility"@en . . . "Frederick II (, 25 April 1211 \u2013 15 June 1246), known as Frederick the Quarrelsome (), was the Duke of Austria and the Duke of Styria from 1230 to his death in 1246. He was the fifth and last Duke of Austria from the House of Babenberg."@en . . . . "1230"^^ . . . . . . . "Spouses"@en . . . "1230"^^ . . . . . "Sophia Laskarina"@en . . . . . . . . . .