Law student, Free University Berlin, 1954—1955. Law student, University Hamburg, 1955—1958. Doctor juris, University Hamburg, 1966.
Habil, University Hamburg, 1973.
Member faculty Free University Berlin Law School, since 1977, professor public law, European community law, since 1975. Director Institute International and Comparative Law, since 1977, Institute Integration Research, University Hamburg, 1979.
Member of Association International Law, Berlin Science Association (director), German Association International Affairs, Association Environmental Law, Association European Community Law, German Association Comparative Law, German Association Public International Law, Association German Teachers Constitutional Law.
Married Helge Gottschalk Grabitz, December 23, 1958. 1 child Nicola.