Eudoxia of Masovia Peerage person ID=9023 Parents Agafia of Rus Konrad I of Masovia Children Jutta von Brehna Dietrich II von Brehna Otto III von Brehna Heinrich von Brehna Conrad I Graf von Brehna Hedwig von Brehna Siblings Dubrawka of Masovia Siemowit I of Masovia Casimir I of Kuyavia Bolesław I of Masovia Judith of Masovia Partners Dietrich Graf von Brehna