In the seriously diminished Roman or Byzantine Empire, Christianity had been the state church since the 380 Edict of Thessalonica. A privileged niche for Jews in the new order nonetheless remained. The Church forbade Christians from charging interest to fellow Christians; therefore the only source of loans were non-Christians such as Jews. While this status did not always lead to peaceful conditions for the Jewish people, they were the most compatible non-Christians for the position due to their shared devotion to the same Abrahamic God that the Christians worshiped. While many Jews rose to prominence in these times, Judaism was mostly practiced in private to avoid persecution. The descendants of the survivors of this period, the Ashkenazi Jews, still commemorate some of the more memorable tragedies of this period in their liturgy. Their fate in each particular country depended on the changing political conditions. In Italy (see History of the Jews in Italy) they experienced difficult days during the wars waged by the Heruli, Rugii, Ostrogoths, and Lombards. The severe laws of the Roman emperors were, in general, more mildly administered than elsewhere; the Arian confession, of which the Germanic conquerors of Italy were adherents, was characterized by its tolerance. In other parts of western Europe, Jews who wished to remain true to the faith of their fathers were protected by the Church itself from compulsory conversion. There was no change in this policy even later, when the Pope called for the support of the Carolingians in protecting his ideal kingdom with their temporal power. Charlemagne, moreover, was glad to use the Church for the purpose of welding together the loosely connected elements of his kingdom when he transformed part of the old Roman empire into a new Christian one, and united under the imperial crown all the German races at that time. Years after his death, in 843, his empire fell apart, and the rulers of Italy, France, and Germany were more attentive to the Church's desires in the making of laws dealing with the Jews. In the wake of a narrow military defeat over Muslim forces, Leo III of Constantinople decided his nation's weakness lay in its heterogeneous population and began the forcible conversion of the Jews, as well as the New Christians. However, some were able to secretly continue their Jewish practices. In 1040, Rashi was born, and in the wake of the Norman conquest of England,