Jocelyn Wildenstein has died at the age of 84. The Swiss socialite was known for her extensive and extreme cosmetic surgery as well as her high-profile divorce from a billionaire art dealer in 1999.

Jocelyn’s longtime partner, Lloyd Klein, confirmed to PEOPLE that she died in her sleep while taking a nap on December 31. The news was first reported by AFP and Paris Match.

Jocelyn was born Jocelyne Périsset in Lausanne, Switzerland in 1940. In 1977 she eloped with Alec Wildenstein. They shared two children, Diane and Alec Jr.

The couple separated in 1997 in a headline-grabbing divorce that was finalized two years later. Tabloids dubbed Jocelyn “The Bride of Wildenstein” and “Catwoman” due to her extremely altered appearance due to surgical procedures. Alec, who died in 2008, ultimately paid his ex-wife $2.5 billion and $100 million annually to settle the divorce.

During her divorce, Jocelyn claimed she underwent so much plastic surgery because of her husband, who she said “hates being around old people.” However, she also denied that her cat-like facial features were solely due to plastic surgery. She told Vanity Fair in 1998: “The lynx has perfect eyes. When I show you pictures of my grandmother, you see these eyes – cat eyes – and high cheekbones.” She also told the outlet that she spent a million dollars every month to maintain the family’s lifestyle.

Alec had a different perspective on their operations, claiming to the outlet, “I would always find out last. She thought she could fix her face like a piece of furniture. That’s not how the skin works. But she didn’t want to listen.”

When the divorce was finalized, Jocelyn tried to stay out of the spotlight. “I’ve never been in public. It’s not in my nature,” she said The Sunday Times in 2023. She also accused Alec of spreading stories about her plastic surgeries and trying to portray her as a “monster” to “win” the divorce.

Jocelyn told The Just This year, she indicated she would be the subject of an upcoming documentary and reality show – decisions she made after she ran out of money. “I have a big problem with my agreement,” she explained. “They have completely cut me off for eight years.” In 2018, she filed for bankruptcy and her three luxury apartments in Trump Tower were seized.

Jocelyn had been in a relationship with the fashion designer Klein since 2003. Klein said Interview magazine in 2023: “She’s known for plastic surgery, but I don’t know if she should be known for it because she’s done a lot of incredible things in her life.” “Big, big, big achievements” in which she expressed her philanthropy highlights efforts.

She told interviewThen about her life after the divorce: “I had a lot of fun. I found freedom, and instead of having to conform to a program, I suddenly had the freedom to appreciate it.”

At times, Klein and Jocelyn’s relationship was on-again, off-again. In 2016, Jocelyn and Klein split after she called the police during a fight. He was charged with assault, among other things, and she was also charged with two counts of assault. Both charges were dropped in 2017 and they reconciled.

In the days before Jocelyn’s death, both she and Klein posted on Instagram about the holidays in Paris.

Jocelyn is survived by Klein and her children.