Mary of Nassau German countess († 1366) (d. 1360) Parents Agnes of Hesse Gerlach I of Nassau Children Siblings Adelaide of Nassau Adolf I of Nassau-Wiesbaden-Idstein Gerlach of Nassau John I of Nassau-Weilburg Agnes of Nassau Crato of Nassau-Sonnenberg Elisabeth of Nassau Rupert of Nassau-Sonnenberg Partners Konrad VI von Weinsberg genannt von Breuberg