I don't think she knew how to process it," Keough says of her mother coping with her father's death, which occurred in August 1977 when Lisa Marie was 9.

I n an emotional revelation, Riley Keough, daughter of Lisa Marie Presleyand granddaughter of Elvis Presley, shared a chilling detail about her mother's sense of impending loss. D

Lisa Marie was 9 years old and living at Graceland with her famous father when he died of a heart attack at age 42.