| Frederick II | |
|---|---|
 Seal of Frederick, by God's grace Duke of Austria | |
| Duke of Austria and Styria | |
| Reign | 1230–1246 |
| Predecessor | Leopold VI |
| Successor | Rudolf of Habsburg |
| Born | 25 April 1211 Wiener Neustadt |
| Died | 15 June 1246 (aged 35) Battle of the Leitha River |
| Burial | |
| Spouse | Sophia Laskarina Agnes of Merania |
| House | House of Babenberg |
| Father | Leopold VI |
| Mother | Theodora Angelina |
Frederick II (German: Friedrich II.; 25 April 1211 – 15 June 1246), known as Frederick the Quarrelsome (Friedrich der Streitbare), 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.[1] He was killed in the Battle of the Leitha River, leaving no male heirs.
- ^ Lingelbach 1913, pp. 93–94.