The first chairman was Hans-Jochen Vogel (1993–2000), who was succeeded by former Bremen mayor Hans Koschnick (2000–2003).
Between 1994 and 1996, Koschnick was the EU administrator of Mostar.
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He was charged with high treason for having organized a May Day rally and made a speech and was sent to a zuchthaus and then Sachsenhausen concentration camp, before being released "on leave" in 1938.
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He was the President of the Senate and Mayor of the German city-state Free Hanseatic City of Bremen from 1967 to 1985 and afterwards served as a member of the Bundestag, the German federal parliament, from 1987 to 1998.
H.E.Hans Koschnick - Prime Minister of the state of Bremen, Federal Republic of Germany (29 January 1971)
Hans Christian Andersen | Hans Holbein the Younger | Hans Zimmer | Hans Werner Henze | Hans Memling | Hans Pfitzner | Hans Küng | Hans Conried | Hans Knappertsbusch | Hans Magnus Enzensberger | Hans-Dietrich Genscher | Hans Blix | Hans Zender | Hans Scholl | Hans Hofmann | Hans Christian Ørsted | Hans Raj Hans | Hans Habe | Hans Baldung | Baron Hans Heinrich Thyssen-Bornemisza | Hans von Ohain | Hans van Manen | Hans Urs von Balthasar | Hans Sloane | Hans Rosbaud | Hans-Georg Backhaus | Hans-Adam II, Prince of Liechtenstein | Yuvraj Hans | Hans von Halban | Hans von Bülow |