"Hans-Dietrich Genscher (21 March 1927 – 31 March 2016) was a German statesman and a member of the liberal Free Democratic Party (FDP), who served as ...
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the Federal Minister of the Interior from 1969 to 1974, and as the Federal Minister of Foreign Affairs and Vice Chancellor of Germany from 1974 to 1992 (except for a two-week break in 1982, after the FDP had left the Third Schmidt cabinet), making him the longest-serving occupant of either post and the only person, holding one of these posts under two different Chancellors of the Federal Republic of Germany. In 1991 he was chairman of the Organization for Security and Co-operation in Europe (OSCE)." - (en.wikipedia.org 29.01.2020)
