Cologne belonged to the Roman Catholic Church, the largest religious body, and 15.5% to the Evangelical Church. Cologne is the seat of the Roman Catholic Archdiocese of Cologne. There are several mosques, including the Turkish-Islamic Union for Religious Affairs run Cologne Central Mosque. Cologne also has one of the oldest and largest Jewish communities in Germany. The city's administration is headed by the mayor and the three deputy mayors. The long tradition of a free imperial city, which long dominated an exclusively Catholic population and the age-old conflict between the church and the bourgeoisie (and within it between the patricians and
History of the Jews in Cologne the 11th century was not less than 600. The markets of Cologne had attracted many Jewish visitors who had partly stayed. Italian Jews are mentioned in the stories about the Crusaders in Cologne. The fact that the Jewish community was important is proved further by the statement in these Hebrew reports that out of Cologne there went forth "our brethren scattered over the earth support for their life and correct words of judgment". It means that the community was the center of Jewish life for all the communities of the area. During the Middle Ages, the Jewish community had been