Back Лешак Белы Byelorussian Leszek I el Blanc Catalan Lešek I. Bílý Czech Leszek I. German Λέσεκ Α΄ ο Λευκός Greek Leszek I el Blanco Spanish لشک اول سفید Persian Lech le Blanc French I. Leszek lengyel fejedelem Hungarian Leszek Biały ID
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| Leszek the White | |
|---|---|
 Leszek the White, as imagined by Jan Matejko | |
| High Duke of Poland | |
| Reign | 1194–1198 1199 1206–1210 1211–1227 |
| Predecessor | Casimir II the Just |
| Successor | Władysław Spindleshanks |
| Duke of Sandomierz | |
| Reign | 1194–1227 |
| Predecessor | Casimir II the Just |
| Successor | Władysław Spindleshanks |
| Duke of Masovia | |
| Reign | 1194–1200 |
| Predecessor | Casimir the Just |
| Successor | Konrad I |
| Born | c. 1184/85 |
| Died | 24 November 1227 (age c. 42–43) Gąsawa, Kujawy, Poland |
| Spouse | Grzymisława |
| Issue | Salomea Bolesław the Chaste |
| House | House of Piast |
| Father | Casimir II the Just |
| Mother | Helen of Znojmo |
Leszek the White (Polish: Leszek Biały; c. 1184/85 – 24 November 1227) was Prince of Sandomierz and High Duke of Poland in the years 1194–1198, 1199, 1206–1210, and 1211–1227. During the early stages of his reign, his uncle Duke Mieszko III the Old and cousin Władysław III Spindleshanks, from the Greater Polish branch of the royal Piast dynasty, contested Leszek's right to be High Duke.[1]
Leszek was the third or fourth,[2] but eldest surviving son of Casimir II the Just and his wife Helen of Znojmo.