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
Wang Bo (chancellor) in 821. Another chancellor, Xiao Mian, objected vehemently, calling Wang "delicate and wicked" and arguing that the popular sentiment was against Wang's being made chancellor. When Emperor Muzong refused to listen, Xiao resigned his chancellorship. Emperor Muzong subsequently ordered Wang to return to Xichuan, but after Wang pleaded to remain, as Duan was also offering to resign, Duan was made the military governor of Xichuan. Wang, while not made chancellor, was kept at Chang'an to serve as the minister of justice (刑部尚書) and again as the director of the salt and iron monopolies. Wang subsequently proposed an increase in the