Leszek II the Black

Leszek II the Black
Seal featuring Leszek the Black kneeling before Saint Stanislaus, 1281–88
High Duke of Poland
Reign1279–1288
PredecessorBolesław V the Chaste
SuccessorHenryk IV Probus
Bornc. 1241
Brześć Kujawski
Died30 September 1288 (aged 46–47)
Kraków
Burial
Dominican Church of the Holy Trinity, Kraków
SpouseGryfina of Halych
HouseHouse of Piast
FatherCasimir I of Kuyavia
MotherConstance 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.