Police in canton Bern said the German-Swiss playboy, Gunter Sachs, committed suicide at his at his home in the mountain resort of Gstaad.
Sachs’ body was found on Saturday at his Swiss chalet. Police said the 78-year-old photographer-industrialist shot himself.
The great-grandchild of the founder of the car maker Opel, Sachs made a name for himself in the early 1960s when he had an affair with the former Iranian queen Soraya Esfandiary and in 1966 when he married film star Brigitte Bardot.
He also gained international fame as a documentary filmmaker and photographer, and was passionately interested in astrology.
He helped give St Moritz its reputation as a jetset resort, living for years in a tower suite of the village's Palace hotel, and founding its legendary Dracula night club in 1974.
swissinfo.ch and agencies