Siemowit, Duke of Kuyavia-Brieg Peerage person ID=114664 (1265–1312) Parents Euphrosyne of Opole Casimir I of Kuyavia Children Władysław of Dobrzyń Bolesław of Dobrzyń Leszek of Dobrzyń Siblings Władysław I the Elbow-high Euphemia of Kuyavia Casimir II of Łęczyca Leszek II the Black Ziemomysł of Kuyavia Partners Anastasia of Galicia
