In addition to his son Timothy of Manhattan, he is survived by his wife of 18 years, Dr. Margrit Wreschner, a psychoanalyst; another son, Stephen of Manhattan; two daughters, Janet of Cambridge, Mass., and Marina of Manhattan; three grandchildren; two sisters, Maria Funk, and Friedburg Lorenz (died in 2007); a half-brother, Helmut - all of them of Heppenheim, Germany; and his stepmother, Lorena (died in 1999) of Heidelberg, Germany.