Mariska Hargitay discovered the truth about her parentage from the head of her late mother's fan club.
The 61-year-old actress - whose mom, actress Jayne Mansfield, was killed in a car accident when she was a baby - recently revealed that she had discovered in her 20s that her dad was actually Italian entertainer Nelson Sardelli, who her mother had dated following a brief split from her spouse, Mickey Hargitay, who Mariska had grown up believing was her biological parent.