OAN Staff Brooke Mallory
12:04 PM – Tuesday, December 30, 2025
Tatiana Schlossberg, an accomplished environmental journalist, author, and the granddaughter of 35th President John F. Kennedy, died on Monday at age 35 after a battle with acute myeloid leukemia (AML), her family announced.
Schlossberg, the daughter of Caroline Kennedy and designer Edwin Schlossberg, had publicly revealed her terminal diagnosis just six weeks earlier in an essay for The New Yorker, published on November 22nd — the 62nd anniversary of her grandfather’s assassination.
Born on May 5, 1990, in New York City, Schlossberg grew up in the shadow of one of America’s most well-known political families, while striving to carve out her own path as a writer focused on climate change and the environment, exemplifying her Democrat upbringing.
A graduate of Yale University and the University of Oxford, where she earned a master’s in American history, she worked as a science and climate reporter for The New York Times and contributed to other left-wing publications such as The Atlantic, The Washington Post, and Bloomberg.
In 2019, Schlossberg also published a book that examined “the hidden ecological costs of everyday consumer choices,” breaking down environmental impacts. The book’s purpose was to teach people to become more aware of how modern life shapes the environment.
Schlossberg married physician George Moran in 2017 on Martha’s Vineyard. She leaves behind two young children.
Hours after the delivery of Schlossberg’s baby girl, doctors noted an abnormally high white blood cell count, leading to a swift diagnosis of AML with a rare genetic mutation known as Inversion 3 — a subtype seen in fewer than 2% of cases and associated with poorer prognosis.
It is particularly resistant to standard treatments.
Over the next 18 months, Schlossberg endured intensive chemotherapy, a bone marrow transplant, with stem cells donated by her older sister, at-home treatments, and participation in a clinical trial for CAR-T cell therapy. Despite brief periods of remission, the cancer repeatedly returned.
Then, in November, her doctors informed her the disease was terminal, estimating that she only had about a year left to live.
In her New Yorker essay, Schlossberg wrote about the pain of facing a terminal illness as a young mother, her deep appreciation for the support of her family, and the sense of sorrow that her diagnosis added to a family history already known for public loss and tragedy.
She is survived by her husband, George Moran; their two children; her parents, Caroline Kennedy and Edwin Schlossberg; and her siblings, Rose and Jack Schlossberg.
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