It seemed to him to be the only salve for his troubled conscience and the only hope of moral improvement open to him. He accordingly proposed to marry the daughter of one of his sister's ladies-in-waiting, Margarethe von der Saale. While the landgrave had no scruples in this matter whatsoever, Margarethe was unwilling to take the step unless they had the approval of the theologians and the consent of the elector of Saxony, John Frederick I, and of Duke Maurice of Saxony. Philip easily gained his first wife's consent to the marriage. Bucer, who was strongly influenced by political arguments, was won over by the landgrave's threat to ally himself with the Emperor if he did not secure the consent of the theologians to the marriage, and the Wittenberg divines were worked upon by the plea of the prince's ethical necessity.