Josephine would not give up her plan, however, and in Napoleon’s arguments that the trip from Mayence to Warsaw was too long—the roads too bad, the weather too cold, for her to venture it, that she was needed in Paris, she saw only a desire to be free from her presence; and when finally he ordered her to “go back to Paris to be happy and contented there,” she obeyed with tears and lamentations. Josephine’s jealousy at this time was more than justifiable. For many months, in fact, she had known beyond question of Napoleon’s various infidelities, and she suspected that the real reason he refused her request to be allowed to go to him was that he had found a new mistress. Or might it not be, she asked herself, that he was planning a divorce and re-marriage. The first supposition was true. It was Madame Walewski who was the chief obstacle to Josephine going to Warsaw, although the reasons Napoleon gave—the danger of the journey and the need of Josephine in Paris—were plausible enough at the moment. It was not until July, 1807, that the Emperor took up the subject of a divorce, as a political necessity, with his counsellors. While at Tilsit with the Emperor of Russia and the King of Prussia, the divorce was discussed, and Napoleon ordered that a list of the marriageable princesses of Europe be made out for him. No doubt vague rumors of the transactions at Tilsit reached Josephine. She took them the more to heart because in May of that year (1807) Hortense’s eldest son, Napoleon-Charles, had died. The death of the boy destroyed one of her chief hopes. It removed the child whom she knew Napoleon so loved that he would have been well satisfied to have made him his successor. Hortense had a second child, Napoleon Louis; but the Emperor did not have the same feeling for him.