BOSTON – Tatiana Schlossberg, an esteemed environmental journalist and the granddaughter of former President John F. Kennedy, has passed away at the age of 35.

Schlossberg, the daughter of Caroline Kennedy and Edwin Schlossberg, publicly shared her battle with terminal cancer in a poignant essay for The New Yorker in November 2025. The news of her passing was announced on Tuesday via a statement from the John F. Kennedy Library Foundation on social media.

“Our beautiful Tatiana passed away this morning. She will always be in our hearts,” read the family’s heartfelt statement. Details about the cause of her death or her location at the time were not disclosed.

Her journey with acute myeloid leukemia began in May 2024, shortly after her second child’s birth, when a routine check-up revealed an unusually high white blood cell count. The diagnosis was a rare mutation of the disease, typically seen in older individuals.

In her essay titled “A Battle With My Blood,” Schlossberg candidly shared her experiences of enduring multiple chemotherapy sessions, undergoing two stem cell transplants, and participating in clinical trials. She recounted how her doctor, during the latest trial, expressed his hope of extending her life by a year, possibly.

Schlossberg also criticized policies pushed by her mother’s cousin, Health and Human Services Secretary Robert F. Kennedy Jr., in the essay, saying policies he backed could hurt cancer patients like her. Her mother had urged senators to reject his confirmation.

“As I spent more and more of my life under the care of doctors, nurses, and researchers striving to improve the lives of others, I watched as Bobby cut nearly a half billion dollars for research into mRNA vaccines, technology that could be used against certain cancers,” the essay reads.

Schlossberg had worked as a reporter covering climate change and the environment for The New York Times’ Science section. Her 2019 book “Inconspicuous Consumption: The Environmental Impact You Don’t Know You Have” won the Society of Environmental Journalists’ Rachel Carson Environment Book Award in 2020.

Schlossberg wrote in The New Yorker essay that she feared her daughter and son wouldn’t remember her. She felt cheated and sad that she wouldn’t get to keep living “the wonderful life” she had with her husband, George Moran. While her parents and siblings, Rose and Jack, tried to hide their pain from her, she said she felt it every day.

“For my whole life, I have tried to be good, to be a good student and a good sister and a good daughter, and to protect my mother and never make her upset or angry,” she said. “Now I have added a new tragedy to her life, to our family’s life, and there’s nothing I can do to stop it.”