Holzapfel became active in Social Democratic party politics already in 1961, becoming the personal assistant of the Hessian Minister of Culture Ludwig von Friedeburg, the author of the most significant liberal education reforms in Germany of that period, in the key years from 1969 to 1974.
Hartmut Esslinger | Hartmut Mehdorn | Hartmut Neven | Hartmut Lutz | Hartmut Kallmann | Hartmut Heinrich | Hartmut Haenchen | Hartmut Geerken | Hartmut Erbse |