Agnes of Nassau-Weilburg countess of Zweibrücken-Bitsch and Nassau-Weilburg (d. 1401) Parents John I of Nassau-Weilburg Joan of Saarbrücken Children Siblings Margaret of Nassau-Weilburg John of Nassau-Weilburg Joan of Nassau-Weilburg Schonetta of Nassau-Weilburg Philip I of Nassau-Weilburg Johannetta of Nassau-Weilburg Partners Simon III. Wecker