He himself wrote later, that he, in company with other divines, had used the churches for grossly immoral purposes. Christian orthodoxy, without inquiring into the true reason for Bodo's change of faith, had a ready answer, viz., that Satan, the enemy of mankind and of the Church, had led him to it. Bodo, without stopping at the court or in France, journeyed from Rome to Spain, and there formally became a Jew, giving up for the new faith his fatherland, his position, and his friends. He was circumcised in Saragossa, assumed the name of Eleazar, and let his beard grow (August, 938). He married a Jewess in Saragossa, and appears to have entered the military service of an Arab prince. He now conceived such hatred against his former co-religionists, that he persuaded the Mahometan conqueror not to tolerate Christians in his dominions, but to compel them to adopt either Islam or Judaism. Thereupon the Spanish Christians are said to have appealed to the emperor of the Frankish empire and to the bishops to use their utmost endeavors to get this dangerous apostate into their power. The emperor Louis was deeply moved by Bodo's conversion. He did not, however, allow the Jews to suffer on account of his grief, but continued to protect them against injustice. Of this we have a clear proof in his action in reference to a lawsuit which came under his notice some months after Bodo's conversion. It is probable that with Louis the Pious originated the theory, current throughout the later period of the Middle Ages, and doubtless inspired by benevolent desires, that the emperor is the natural patron of the Jews, and that they, being his wards, are inviolable. With the death of the emperor Louis, the golden age of the Jews in the Frankish dominions came to an end, and their good fortunes were not renewed for a considerable time. Southern Europe, disturbed by anarchy, and ruled by a fanatic clergy, did not offer a favorable field for the development of Judaism. It is true that Charles the Bald, the son of Louis by Judith, who caused so much confusion in the Frankish dominions, that the subsequent division of the kingdom into France, Germany, Lorraine, and Italy ensued, was not hostile to the Jews (843). He appears, indeed, to have inherited from his mother a certain preference for Judaism. He had a Jewish physician, Zedekiah, to whom he was much attached, but whose skill in medicine was regarded, by the ignorant and superstitious people, as magic and the work of the devil, and also a Jewish favorite, whose political services won from his royal master the praise, "My faithful Judah."