TLDR
Jamie Lee Curtis has revealed intimate memories of her sister Kelly Lee Curtis as new reporting confirms Kelly died of natural causes after hospice care.
The public first saw Jamie Lee Curtis’ loss in a single, aching Instagram post about her older sister. Now a clearer picture of Kelly Lee Curtis’ final days is emerging, and it is quieter, more intimate, and deeply rooted in family history.
Page Six confirmed that Kelly died of natural causes. She was 69. Us Weekly reported that she passed at 2:30 a.m. after spending a week in hospice care, and that she is expected to be cremated. In her own words, Jamie told fans that her sister died “at peace,” a detail that feels like both a medical note and a blessing.
Kelly was more than the other Curtis daughter with famous parents. She carved out her own on-screen life, appearing in the 1987 film “Magic Sticks” and the 1991 thriller “The Devil’s Daughter.” Away from cameras, she built a long marriage with filmmaker John Marsh and a private world that her younger sister is now carefully sharing.
In her tribute, the “Halloween” star described Kelly as her “first friend and lifelong confidant.” Jamie painted an almost scrapbook-like portrait: a sister who was “jawdroppingly beautiful” and “a talented actress,” who played a fierce game of hearts, collected turtles, loved nature, music, travel, Facebook, and Pokemon Go, and took pride in both her Danish roots and her Hungarian Jewish ancestry. Kelly was, Jamie wrote, a devoted American patriot.

There is a sensory detail Jamie fans have already seized on. Every Christmas, Kelly baked powdered almond crescent cookies. The nieces and nephews called her Auntie Cookie, and Jamie wrote that her sister would be remembered for “her loving generosity, fierce opinions, endless curiosity, unique style, and her powdered, almond, crescent cookies at Christmas,” a line that feels like it could sit beside a family recipe card.
Jamie and Kelly were born into one of Hollywood’s most storied dynasties. Their parents, Tony Curtis and Janet Leigh, were married for 11 years before divorcing in 1962. Tony would go on to have four more children, including son Nicholas, who died in 1994 from a heroin overdose at 23. Against that backdrop of divorce and loss, Jamie admitted that her bond with Kelly was loving, complicated, and, ultimately, enduring.

“My sister and I were close as children but also had that sibling competition for divorced parents’ attention and love, and we were wildly different and lived apart for many years,” Jamie shared. The turning point came when Kelly returned for Jamie’s wedding to Christopher Guest. From that day, Jamie said, Kelly “never really left again.”
Jamie later posted never-before-seen photos from that time, taken when Kelly slept over the night before the 1984 ceremony. In the images, fans see two young women suspended between Hollywood legacy and real-life sisterhood, unaware of everything ahead of them, from Oscar wins to final goodbyes.
Journalist Chris Connelly added his own chapter to Kelly’s story in the comments of Jamie’s post. “She joined our high school class senior year, and it was as if she had stepped off a meteorite,” he wrote, remembering how she “walked in beauty, like the night” and quoted lyrics from “Tumbleweed Connection” in their yearbook. To him, she remained “the coolest breeze of fresh air” in a crowded New York City adolescence.
Today, Jamie tells followers, “I miss her today but am buoyed by the knowledge that she is at peace.” For a family that has lived so much of its life in public, Kelly Lee Curtis’ final chapter is unfolding as something small, specific, and intensely human, held in stories, snapshots, and the memory of Auntie Cookie’s Christmas cookies.
How do Jamie and Kelly’s intertwined stories, from Hollywood childhood to that final hospice goodbye, shape the way you see the Curtis-Leigh legacy now?