Tatiana Schlossberg, 35, has died after a private illness. She was Caroline Kennedy’s daughter and President John F. Kennedy’s granddaughter.
Death announcement and Trump post draw attention
First, the JFK Library Foundation confirmed her death on December 30, 2025. The group shared an Instagram post with a photo of her on a boat. That same day, President Donald Trump posted on Truth Social about online debate over renaming the Kennedy Center.
A shock diagnosis after her baby’s birth
Next, Schlossberg described her illness in a New Yorker essay, “A Battle with My Blood.” Her second child, a baby girl, was born on May 25, 2024. Doctors then found her white blood cell count had jumped to 131,000.
Treatment, relapses, and focus on family
However, tests confirmed acute myeloid leukemia, a fast blood cancer. She said her cancer had “Inversion 3,” a rare gene change that complicates treatment. She had chemotherapy and a bone marrow transplant, replacing blood-making cells with donor cells.
Also, she survived a postpartum hemorrhage, heavy bleeding after birth. She entered a clinical trial, a test study of new treatments, in January 2025. After more remissions and relapses, she chose to spend time with her children.
Finally, she said she wanted her son to remember her work as a writer. She had hoped to write a book about the oceans, including how a Caribbean sponge led to cytarabine.