Anita Pallenberg was an Italian-German film actress, artist, and model. A style icon and "It Girl" of the 1960s and 1970s, Pallenberg was credited as the muse of the Rolling Stones: she was the romantic partner of the Stones multi-instrumentalist, Brian Jones, and later, from 1967 to 1980, the partner of Stones guitarist Keith Richards, with whom she had three children. From Wikipedia
