Chancellor of Germany was usually held by Archbishops of Mainz. The title was, at times, used in several states of German-speaking Europe. The modern office of chancellor was established with the North German Confederation, of which Otto von Bismarck became "Bundeskanzler" (meaning "Federal Chancellor") in 1867. With the enlargement of this federal state to the German Empire in 1871, the title was renamed to "Reichskanzler" (meaning "Chancellor of the Realm"). With Germany's constitution of 1949, the title of "Bundeskanzler" was revived. During the various eras, the role of the chancellor has varied. From 1867 to 1918, the chancellor was the only responsible minister
Chancellor of Germany as in the Prussian tradition of, for instance, Hardenberg. In both of these aspects, the executive of the federation, and then empire, as it was formed in 1867 and 1871, was deliberately different from the Imperial Ministry of the revolutionary years 1848/49, which had been led by a prime minister elected by the National Assembly. In 1871, the concept of the federal chancellor was transferred to the executive of the newly formed German Empire, which now also contained the South German states. Here too, the terms of “chancellor” and “federal agency” (as opposed to “ministry” or “government”) suggested an (apparent)