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 Austria sovereign head of government was the State Chancellor of the Austrian Empire, a position only held by Klemens von Metternich. The office was later renamed to Minister-President of the Austrian Empire and remained from there on until the dissolution of Austria-Hungary. The first head of government after the monarchy was the State Chancellor of German-Austria, an office again only held by one person; Karl Renner. After allied powers declined a union between Austria and Germany, the office was renamed to just State Chancellor of Austria and later changed to Federal Chancellor, which remained the position's final form until present day.