History of Germany (1945–90) on 13 February 1990. The six foreign ministers met four times in the ensuing months in Bonn (5 May), Berlin (22 June), Paris (17 July), and Moscow (12 September). The Polish Foreign Minister participated in the part of the Paris meeting that dealt with the Polish-German borders. Overcoming Soviet objections to a united Germany's membership in NATO was of key importance. This was accomplished in July when the alliance, led by President George H.W. Bush, issued the London Declaration on a transformed NATO. On 16 July, President Gorbachev and Chancellor Kohl announced the agreement in principle on a united Germany
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