Frederick IV, Duke of Lorraine
| Frederick IV | |
|---|---|
| Duke of Lorraine | |
Frederick IV by Anton Boys | |
| Born | 15 April 1282 |
| Died | 23 August 1328 |
| Spouse | Elisabeth of Austria |
| Issue | Rudolph Margaret |
| House | House of Lorraine |
| Father | Theobald II, Duke of Lorraine |
| Mother | Isabella of Rumigny |
Frederick IV (French: Ferry) (15 April 1282 – 23 August 1328), called the Fighter, was the Duke of Lorraine from 1312 to his death in 1328.