Riley Keough shares a touching photo tribute to her late mother, Lisa Marie Presley. On Instagram, the 33-year-old actress shares a black-and-white photo of herself and her famous mom holding a bouquet of flowers. Riley is the first child of Lisa Marie and father Danny Keough, who were married for six years. Lisa Marie, the only child of Elvis and Priscilla Presley, died last week, after suffering cardiac arrest at her home in Calabasas. She was 54.