Jamie Lee Curtis has paid tribute to Kelly Curtis, her elder sister, on social media after she passed away on May 30 at the age of 69. She reportedly died at her home in Bellevue, Idaho.The True Lies actress took to her official Instagram account and shared a black-and-white picture of Kelly, also an actress known for starring in Trading Places and The Devil's Daughter. She described her as her “first friend and lifelong confidant.” She further mentioned her as a “jaw-droppingly beautiful and talented actress.” View this post on Instagram Instagram PostKelly’s death comes three decades after Jamie’s brother Nicholas reportedly died after suffering a fatal seizure from a heroin overdose in 1994. He was a keyboard musician and artist who painted and drew in all the mediums.Jamie is the daughter of late actors Tony Curtis and Janet Leigh. Kelly was her full sister. She also has four half-siblings from her father’s later marriages - sisters Alexandra and Allegra and brothers Ben and Nicholas.All we know about Jamie Lee Curtis’ brother Nicholas CurtisJamie Lee Curtis has been grieving the death of her elder sister, Kelly Curtis, who passed away recently. Kelly’s death has renewed interest in her and Jamie’s half-brother, Nicholas Curtis, who died in 1994 at the age of 23.Nicholas Curtis, whose full name was Nicholas Bernard Curtis, was born in 1970 in London to the legendary Tony Curtis and his third wife, and model Leslie Curtis. Nicholas spent the early years of his life in Los Angeles, then moved to Cape Cod to live with his mother from 1978 to 1983.He attended Wixon School and Dennis-Yarmouth Regional High School in Cape Cod. He was a student at the Museum School of Fine Arts in Boston. Besides being a musician, Nicholas studied drawing and painting. He was also a poet and appeared in several films.Nicholas was sleeping at a friend's house in Provincetown, Cape Cod, when he suffered a seizure and died. He had experienced a seizure about a month earlier and was undergoing tests to determine the cause.Jamie Lee Curtis. If Not Now, When, If Not Me, Who? Pivoting And Manifesting! - 2026 SXSW Conference And Festival - Source: GettyJamie Lee Curtis spoke about her brother’s heroin addiction during an appearance on Morning Joe in 2023. She told Joe Scarborough:“He was clean and sober, and he went out and used one time, and died from an overdose. And he is one of millions and millions of people whose lives have been extinguished because of addiction.”According to the reports, three men were arrested and charged in connection with Nicholas’ death including his best friend, Joshua Laven, and John Denaro. The third person has not been named in the reports. They were ordered held on $5,000 bail each after they pleaded innocent to manslaughter and drug charges stemming from Nicholas’ death.Most of Jamie Lee Curtis’ brothers and sisters pursued acting, except for two of her brothers, including Nicholas, who had a career outside Hollywood. Kelly Curtis was Tony Curtis’ eldest child, who followed in his footsteps. She later worked as an assistant with Jamie in several movies like Freaky Friday and Christmas with the Kranks. Jamie’s half-sisters, Alexandra and Allegra, also tried acting, but their careers were short-lived and not as successful as the Knives Out actress. Her half-brother, Ben worked as a visual artist outside the entertainment industry.