Trojden I, Duke of Masovia Duke of Masovia (1284–1341) Parents Gaudemunda of Lithuania Bolesław II of Masovia Children Bolesław Jerzy of Mazovia Siemowit III, Duke of Masovia Eufemia of Masovia Casimir of Masovia Siblings Siemowit II of Masovia Euphrosyne of Masovia Wenceslaus of Płock Anna of Mazovia Partners Maria of Galicia
