Leszek II the Black
| Leszek II the Black | |
|---|---|
Seal featuring Leszek the Black kneeling before Saint Stanislaus, 1281–88 | |
| High Duke of Poland | |
| Reign | 1279–1288 |
| Predecessor | Bolesław V the Chaste |
| Successor | Henryk IV Probus |
| Born | c. 1241 Brześć Kujawski |
| Died | 30 September 1288 (aged 46–47) Kraków |
| Burial | Dominican Church of the Holy Trinity, Kraków |
| Spouse | Gryfina of Halych |
| House | House of Piast |
| Father | Casimir I of Kuyavia |
| Mother | Constance of Wrocław |
Leszek II the Black (c. 1241 – 30 September 1288) was a Polish prince of the House of Piast, Duke of Sieradz since 1261, Duke of Łęczyca since 1267, Duke of Inowrocław from 1273 to 1278, Duke of Sandomierz and High Duke of Poland from 1279 until his death.