Tatiana Schlossberg, granddaughter of former US President John F. Kennedy, has died at the age of 35.

Her family announced her death in a social media post shared by the John F. Kennedy Library Foundation, writing: “Our beautiful Tatiana passed away this morning. She will always be in our hearts.”

In November, climate reporter Schlossberg announced that she had been diagnosed with an aggressive form of cancer. She said in an article that she had less than a year left to live.

The daughter of designer Edwin Schlossberg and diplomat Caroline Kennedy, Schlossberg is survived by her husband, George Moran, and their two children, three-year-old Edwin and one-year-old Josephine.

Schlossberg revealed in an article titled “Battle with My Blood” published in The New Yorker last month that she was diagnosed with acute myeloid leukemia in May 2024 after giving birth to her second child.

“My first thought was that my children would not remember me, their faces forever living on the inside of my eyelids,” she wrote.

Schlossberg described the treatments she received, including chemotherapy and a bone marrow transplant, but said doctors didn’t give her a good prognosis.

She also wrote that she feared her death would cause pain to her family, which has already experienced multiple personal tragedies. Her grandfather, President Kennedy, was assassinated in 1963, and her uncle, John F. Kennedy Jr., died in a plane crash in 1999.

Her brother, Jack Schlossberg, is running for Congress in New York.

“My whole life I have tried to be good, to be a good student, sister and daughter, and to protect my mother and never make her sad or angry,” Schlossberg wrote.

“Now I’ve added a new tragedy to her life, to our family’s life, and there’s nothing I can do to stop it,” she said.

In the article, Schlossberg also expressed disappointment that her relative, Robert F. Kennedy Jr., was appointed to lead the Department of Health and Human Services.

Another relative, journalist Maria Shriver, the former first lady of California, paid tribute to her “sweet, sweet Tatiana,” saying she “loved her life.”

“She built a wonderful life with her extraordinary husband, George, and her children, Eddie and Josie. She fought like a warrior. She was brave, strong, and courageous.”

“Tatianna is a great journalist who uses her words to educate others about the Earth and how to save it,” Shriver wrote on Instagram.

Before her widely read articles about her diagnosis, Schlossberg had a successful career as a climate journalist.

Schlossberg authored the book “Inconspicuous Consumption: The Environmental Impact You Didn’t Know About.” She also writes about climate and other beats for The New York Times.

In December 2021, she report A local experiment is underway to use energy from the London Underground to heat homes in a bid to combat climate change.

“I think climate change is the biggest story in the world, and it’s a story that concerns everything,” she told NBC News in 2019. “It’s about science and nature, but it’s also about politics, health and business. To me, looking at this as a journalist, it seemed like a really important story.”

“If I can help communicate this issue, it might inspire others to get involved and address it,” she said.