Had a relationship with Ingmar Bergman in the 1950:s.
Her daughter, Petra, is named after the maid she played in Ingmar Bergman's cinematic masterpiece Smiles of a Summer Night (1955) [Smiles of a Summer Night]. The musical "A Little Night Music" was adapted from this film.
Lived with Jörn Donner for a while in the 1960s.
No relation to actress Bibi Andersson.
One daughter: Petra (b. 1960)
She appeared on stage occasionally in her early career and played roles that ranged from the title role in "The Diary of Anne Frank" to Ophelia in "Hamlet".