sentences:  During his five-year stay in the Ottoman Empire, Charles XII corresponded with his sister (and eventual successor), Ulrika Eleonora.According to Mrs. Ragnhild Marie Hatton, a Norwegian-British historian, in some of those letters Charles expressed his desire for a peace treaty which would be defensible in the future Swedish generations' eyes.However, he emphasized that only a greater respect for Sweden in Europe would enable him to achieve such a peace treaty.