Gio Petré was born on November 1, 1937 in Stockholm, Sweden as Ann-Mari Birgitta Bengtsdotter Petré. She made her acting debut at 18, in "Flottans muntergökar" (1955). She was born into a family of artists. Gio Petré studied for a year at Gösta Terserus theatre school in Stockholm. In 1956 she was accepted at the Royal Dramatic Theatre School and ...