In a statement, her mother Priscilla said she was "the most passionate, strong and loving woman" she's ever known.
She'd been married four times including to Michael Jackson, and was a recording artist in her own right.
She'd been at the Golden Globes just two days ago to celebrate Austin Butler's acting success for the biopic, Elvis.
Lisa Marie also touched on the movie at a celebration at Graceland earlier this month, for what would've been her dad's 88th birthday.
"I think that he would be proud. I think this year has been an incredible year, I think the movie was incredible. And I'm very proud of it. I hope you guys are too"
