Walter Momper

Walter Momper (born 21 February 1945) is a German politician of the SPD (Social Democrats) and former Governing Mayor of Berlin (West Berlin 1989–1990, reunited Berlin 1990–1991). Whilst Governing Mayor, he served as President of the Bundesrat in 1989/90. He was at the opening of the Brandenburg Gate on 22 December 1989 and, on 3 October 1990, became the first mayor of a reunited Berlin. Provided by Wikipedia