Lisa Marie married producer Michael Lockwood in Kyoto, Japan, in January of 2006.
"They seemed very happy," the groom's dad told PEOPLE.
In 2008, the couple welcomed twin daughters Harper and Finley.
"It's different having babies in your 20s than when you're 40—which I cannot even get that out to say," Lisa Marie told PEOPLE when the girls were 3 months old. "Blow embracing it! But in my 40s, I don't feel pulled anywhere else. We are 100 percent focused on the twins. I don't want to miss a milestone, so I'm always here."
In 2016, Lisa Marie filed for divorce, but the couple didn't actually finalize the terms until 2021 thanks to a lengthy custody battle.
In 2017, she claimed that Lockwood was the subject of criminal investigations involving hundreds of inappropriate photos of children that authorities found on his electronic devices. Meanwhile, he expressed concerns she would face drug addiction again and asked a judge to strip her primary custody of their daughters. Priscilla had custody of the girls for a time as the exes sorted their affairs.