Demographics of Cologne and on 1 April 1888 ended in a first major incorporation. The territorial expansion, beginning in the late 19th century, were significant marks for the city's population growth. Major communal reorganizations took place in 1910, 1914, 1922 and 1975. Demographics of Cologne Cologne () is Germany's fourth-largest city and the largest city in the Rhineland. As of 31 December 2011, there were officially 1,017,155 residents. The city is center of the Cologne/Bonn Region with around 3 million inhabitants (including the neighboring cities of Bonn, Hürth, Leverkusen, and Bergisch Gladbach). The walls of Colonia Agrippina covered an area of 96.8 hectares,
Bruno of Cologne Bruno of Cologne Bruno of Cologne (c. 1030 – 6 October 1101) was the founder of the Carthusian Order, he personally founded the order's first two communities. He was a celebrated teacher at Reims, and a close advisor of his former pupil, Pope Urban II. His feast day is October 6. Bruno was born in Cologne about the year 1030. According to tradition, he belonged to the family of Hartenfaust, or Hardebüst, one of the principal families of the city. Little is known of his early years, except that he studied theology in the present-day French city of Reims before