Casimir II the Just

Casimir II the Just
High Duke of Poland
Tenure1177–1191
1191–1194
PredecessorMieszko III
SuccessorLeszek the White
Duke of Masovia
Tenure1186–1194
PredecessorLeszek
SuccessorLeszek I the White
Born28 October 1138
Died5 May 1194 (aged 55)
Kraków
Burial
SpouseHelena of Znojmo
Issue
more...
Adelaide
Leszek I the White
Konrad I of Masovia
HousePiast dynasty
FatherBolesław III Wrymouth
MotherSalomea of Berg
ReligionRoman Catholic

Casimir II the Just (Polish: Kazimierz II Sprawiedliwy; 28 October 1138 – 5 May 1194) was a Lesser Polish Duke of Wiślica from 1166 to 1173, and of Sandomierz after 1173. He became ruler over the Polish Seniorate Province at Kraków and thereby High Duke of Poland in 1177; a position he held until his death, though interrupted once by his elder brother and predecessor Mieszko III. In 1186 Casimir also inherited the Duchy of Masovia from his nephew Leszek, becoming the progenitor of the Masovian branch of the royal Piast dynasty, and great-grandfather of the later Polish king Władysław I the Elbow-high. The honorific title "the Just" was not contemporary and first appeared in the 16th century.