Marcello, as well as Roger Vadim, wanted to see Catherine as his wife, but she again refused to her beloved and kept freedom in their relations.
By now her marriage was over and she became involved with actor Marcello Mastroianni, with whom she had a daughter, Chiara, in 1972.
She is the daughter of the French stage actors named Renée Simonot and Maurice Dorléac.
Her mother herself was a housewife and accustomed her daughters to the housework.