Euphemia of Kuyavia Kuyavian princess (1265–1308) Parents Euphrosyne of Opole Casimir I of Kuyavia Children Lev II of Galicia Maria of Galicia Andrew of Galicia Anastasia of Galicia Siblings Władysław I the Elbow-high Ziemomysł of Kuyavia Siemowit, Duke of Kuyavia-Brieg Leszek II the Black Casimir II of Łęczyca Partners Yuri Boleslavovitch