Back Friedrich IV. (Liegnitz) German Φρειδερίκος Δ΄ της Λεγκνίτσα Greek Frédéric IV de Legnica French Frederik IV van Legnica Dutch Fryderyk IV legnicki Polish Фридрих IV Легницкий Russian 腓特烈四世 (萊格尼察) Chinese
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Frederick IV | |
|---|---|
| Duke of Legnica | |
 Frederick IV, Duke of Legnica, engraving by Bartholomäus Strachowsky, 1733 | |
| Born | 20 April 1552 |
| Died | 27 March 1596 |
| Noble family | Silesian Piasts |
| Spouse(s) | Maria Sidonia of Cieszyn Dorothea of Schleswig-Holstein-Sonderburg Anna of Württemberg |
| Father | Frederick III of Legnica |
| Mother | Katharina of Mecklenburg |
Frederick IV, Duke of Legnica (20 April 1552 – 27 March 1596) was Duke of Legnica from 1571 until his death (as a co-ruler of his elder brother during 1571–1576 and 1580–1581).
He was the third but second surviving son of Frederick III, Duke of Liegnitz, by his wife Katharina, daughter of Henry V, Duke of Mecklenburg. He was named after his brother Frederick, who died in 1551, one year before his birth.