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| 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[1]), called the Fighter, was the Duke of Lorraine from 1312 to his death.
- ^ Bogdan 2007, p. 56.