Władysław I the Elbow-high of Kujawy, however, as he had two older half-brothers from Casimir’s second marriage to Constance of Wrocław: Leszek II the Black ("Leszek Czarny") and Ziemomysł. He was named after his uncle, his mother's brother Władysław, Duke of Opole. Already in contemporary sources he was nicknamed ""Łokietek"", a diminutive of the word "łokieć". It translates as "elbow" or "ell" – a medieval unit of measure similar to a cubit, as in "elbow-high". The origin of this nickname, as resulting from Władysław’s short stature, was explained only in the 15th century by historian Jan Dlugosz. In 1267, when Władysław the Elbow-high was
Władysław I the Elbow-high and also backwards-counting from Władysław of Varna who officially used the numeral III and Władysław Vasa who used the numeral IV. In 1293, Władysław married Hedwig of Kalisz. She was a daughter of Boleslaus of Greater Poland and Jolenta of Hungary. They had six children: He is played by Wiesław Wójcik in Polish historical drama TV series "Korona królów" ("The Crown of the Kings"). He is a recurring character in the first season. Władysław I the Elbow-high Władysław I the Elbow-high or the Short (; c. 1260 – 2 March 1333) was the King of Poland from 1306 to 1333,