Herbert Wehner
Herbert Richard Wehner was a German politician. A former member of the Communist Party, he joined the Social Democrats after World War II. He served as Federal Minister of IntraGerman Relations from 1966 to 1969 and thereafter as chairman of the SPD parliamentary group in the Bundestag until 1983.
Herbert Wehner was born in Dresden, the son of a shoemaker. His father was active in his trade union and a member of the Social Democratic Party. More radical than his father, Wehner engaged in anarchosyndicalist circles around Erich Mhsam, driven by the 1923 invasion of Reichswehr troops into the Free State of Saxony at the behest of the DVPSPD Reich government of Chancellor Gustav Stresemann. He also fell out with Mhsam, whose pacifist manners he rejected, and finally joined the Communist Party of Germany in 1927, becoming an official of the partys Rote Hilfe organisation the same year.
Source: Wikipedia