Jamie Lee Curtis is mourning the loss of her older sister. Kelly Lee Curtis died on May 30 at age sixty-nine, and as per a report shared by Cover Media, a cause of death has not been released. Jamie Lee shared a tribute on Instagram, dedicating a "warm aloha to my older sister," who she said died at home, "in nature. At peace."The Freakier Friday star shared a portrait of her sister and shared that,"She was my first friend and lifelong confidant.""She was jaw-droppingly beautiful, and a talented actress. She played a mean game of hearts, collected turtles, loved her family, nature, music, thrifting, travel, Facebook, and Pokémon Go," she added.Jamie Lee Curtis is the younger daughter of legendary actors Tony Curtis and Janet Leigh. She has one older sister, Kelly Curtis, and four younger half-siblings from her father's later marriages: Alexandra, Allegra, Benjamin ("Ben"), and Nicholas Curtis. Nicholas died of a heroin overdose in 1994. View this post on Instagram Instagram PostJamie Lee Curtis pays tribute to her older sister:Jamie Lee Curtis speaks onstage during the "Jamie Lee Curtis. If Not Now, When, If Not Me, Who? Pivoting And Manifesting!" session during the 2026 SXSW Conference And Festival at JW Marriott Austin on March 14, 2026 in Austin, Texas - Source: GettyJamie Lee Curtis kept going in her tribute, describing Kelly as a "devoted American patriot" who carried pride in her Danish roots and Hungarian Jewish ancestry."She will be remembered for her loving generosity, fierce opinions, endless curiosity, unique style, and her powdered, almond, crescent cookies at Christmas, hence her name, Auntie Cookie."Jamie Lee Curtis' signed off with,"Isten Veled to my sister of the sun and the moon, my Tai. I'll see you on down the line."Kelly Lee Curtis lived a life beyond her famous family name:Janet Leigh and her daughter Kelly - Source: GettyAs per a report shared by The Hollywood Reporter, Kelly Lee Curtis was born in Santa Monica on June seventeenth, 1956. Both her parents starred in the adventure film The Vikings that year, and a young Kelly appeared in it too. She later earned a business degree from Skidmore College in Saratoga Springs, New York, worked as a stockbroker, then turned to acting. She studied at the Lee Strasberg Theatre Institute, became a member of The Actors Studio, and in 1982 took the stage in Say Goodnight, Gracie.Kelly shared a scene with her sister in Trading Places in 1983, though her role was a small one. She later led the 1987 German comedy Magic Sticks and the 1991 Italian horror film The Devil's Daughter, co-written and produced by Dario Argento. A recurring role as Lieutenant Carolyn Plummer on The Sentinel followed, and she also turned up in The Equalizer, Hunter, Silk Stalkings, Star Trek: Deep Space Nine, and Judging Amy.Behind the camera, she directed the 2018 documentary Marby Jets Are Go, about an Australian high school track team, and worked as an assistant to her sister on Freaky Friday, Christmas With the Kranks, and You Again.What we know about Jamie Lee Curtis' siblings:Allegra Curtis at Minx by Eva Lutz Arrivals - Mercedes-Benz Fashion Week Autumn/Winter 2014/15 - Source: GettyAs per a report shared by People, Jamie Lee Curtis and Kelly weren't the only two of Tony Curtis's daughters who took to show business. Alexandra and Allegra both made careers in Hollywood as well. Alexandra appeared in The Excluded (1982) and The Gold of Love (1983), while Allegra landed roles across a handful of TV series and movies through the eighties and into the early two thousands, including several episodes of L.A. Heat.Jamie Lee Curtis' younger half-brother Nicholas died of a heroin overdose at age twenty-three in 1994. A musician living on Cape Cod, Massachusetts, he had been sober for a period leading up to his death, something Jamie later revealed on MSNBC's Morning Joe."He was clean and sober, and he went out and used one time and died from an overdose," she explained."He is one of millions and millions of people whose lives have been extinguished because of addiction," she added.Her other half-brother Ben took a very different path. He managed a bar in Maine, where he has lived with his partner and their three sons for over a decade. In 2023, Ben opened up to local paper The Courier-Gazette about growing up around his father's world."When I was twelve, I stayed at the Playboy Mansion for a week," he shared."My dad and Hugh Hefner were very good friends. I visited the mansion from age seven to age twenty, for different things, for parties. We'd go screen movies on Sundays. That's the type of hangout I had with my father," he added.