At about this time--in the second half of the eighth century--the Jews of Europe also emerged a little from the darkness which had covered them for centuries. Favored by the rulers, or at least neither ill-treated nor persecuted by them, they raised themselves to a certain degree of culture. Charlemagne, the founder of the empire of the Franks, to whom Europe owes its regeneration and partial emancipation from barbarism, also contributed to the spiritual and social advancement of the Jews in France and Germany. By the creation of the German-Frankish empire--which extended from the ocean to the further side of the Elbe, and from the Mediterranean to the North Sea--Charlemagne transferred the focus of history to Western Europe, whereas hitherto it had been at Constantinople, on the borderland between Eastern Europe and Asia. Although Charlemagne was a protector of the Church, and helped to found the supremacy of the papacy, and Hadrian, the contemporary Pope, was anything but friendly to the Jews, and repeatedly exhorted the Spanish bishops to prevent the Christians from associating with Jews and heathens (Arabs), Charlemagne was too far-seeing to share the prejudices of the clergy with respect to the Jews. In opposition to all the precepts of the Church and decisions of the councils, the first Frankish emperor favored the Jews of his empire, and turned to account the knowledge of a learned man of this race, who journeyed to Syria for him, and brought back to France the products of the East. While other monarchs punished the Jews for purchasing Church vessels or taking them as pledges from the clergy or the servants of the Church, Charlemagne adopted the opposite course; he inflicted heavy punishment on the sacrilegious ecclesiastics, and absolved the Jews from all penalties.