Leszek II the Black
Polish prince
Leszek II the Black, was a Polish prince of the House of Piast, Duke of Sieradz since 1261, Duke of Łęczyca since 1267, Duke of Inowrocław in the years 1273-1278, Duke of Sandomierz and High Duke of Poland from 1279 until his death. Wikipedia
Born: 1241, Brześć Kujawski, Poland
Died: September 30, 1288 (age 47 years), Kraków, Poland
Spouse: Gryfina of Halych (m. 1265–1288)
Siblings: Władysław I Łokietek and Siemowit of Dobrzyń
Parents: Casimir I of Kuyavia and Constance of Wrocław