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Tatiana Schlossberg, the granddaughter of President John F. Kennedy and an environmental journalist, has died. She was 35 years old.
Schlossberg, the daughter of Kennedy’s daughter Caroline Kennedy and Edwin Schlossberg, revealed in a November 2025 New Yorker essay that she has terminal cancer.
Her death was announced in an Instagram post by the John F. Kennedy Library Foundation.
“Our beautiful Tatiana passed away this morning. She will always be in our hearts,” the statement said. The cause and place of death have not been disclosed.
Schlossberg was diagnosed with acute myeloid leukemia in May 2024 at the age of 34. After giving birth to her second child, doctors noticed that her white blood cell count was high. It turned out to be acute myeloid leukemia with a rare mutation, found primarily in older people.
In his essay “Fighting My Blood,” Schlossberg described undergoing a course of chemotherapy, two stem cell transplants, and participating in a clinical trial. During a recent trial, she wrote, doctors told her that she would “probably be able to live for a year.”
Schlossberg also criticized policies promoted by her mother’s cousin, Secretary of Health and Human Services Robert F. Kennedy Jr., in an essay, saying the policies he supports could harm cancer patients like her. Her mother had urged senators to deny his confirmation.