Jocelyn Wildenstein’s longtime partner, Lloyd Klein, is sharing what he believes to be the late socialite’s cause of death. The Swiss celebrity, who was best known for her extreme plastic surgeries and catlike appearance,

“It’s very sad. It’s extremely sad,” Klein said about Wildenstein’s passing. “It’s extremely sad to lay down with your other half that I know for 21 years and waiting to celebrate New Year’s Eve and to find her cold.” Klein confirmed that Wildenstein died of phlebitis.

Jocelyn Wildenstein passed away last Tuesday, a day before New Year, from a pulmonary embolism at the age of 84.

Jocelyn Wildenstein is to be cremated in the wake of her death on New Year's Eve. Wildenstein's longtime partner, Lloyd Klein, told TMZ that she'll be cremated, with her remains transported to a ranch in Kenya following an intimate funeral in Paris.