Chancellor of Germany (1949–present) German chancellor until the end of the Holy Roman Empire in 1806 while the Archbishop of Cologne was Chancellor of Italy and the Archbishop of Trier of Burgundy. These three Archbishops were also Prince-electors of the empire. Already in medieval times the chancellor had political power like Willigis of Mainz (Archchancellor 975–1011, regent for Otto III 991–994) or Rainald von Dassel (chancellor 1156–1162 and 1166–1167) under Frederick I. The modern office of chancellor was established with the North German Confederation, of which Otto von Bismarck became chancellor of the Confederation (official German title: "Bundeskanzler") in 1867. After unification of Germany
Chancellor of the Tang dynasty of Emperor Gaozong, and was initially known as the "Tóng" "Zhōngshū Ménxià Píngzhāngshì" (同中書門下平章事, literally "equivalent to the participators from the "Zhōngshū" and the "Ménxià""), rendered by Bo as "chancellors de facto second grade." Later in Tang history, after the Anshi Rebellion, while the chancellor-de facto designation was not officially abolished, it was no longer in use, as the last chancellor to be designated as such was Li Lin, in 757–758, and the chancellor-de facto-of-second-grade designation became very common and was used for the rest of Tang history. Furthermore, after 705, the heads of the executive bureau were no longer