‘Our beautiful Tatiana passed away this morning. She will always be in our hearts’: Kennedy family mourns yet another tragic death

Environmental journalist Tatiana Schlossberg, one of three grandchildren of the late President John F. Kennedy, has died after she was diagnosed with leukemia last year. She was 35.

Schlossberg, daughter of Kennedy’s daughter, Caroline Kennedy, and Edwin Schlossberg, revealed she had terminal cancer in a November 2025 essay in The New Yorker. A family statement disclosing her death was posted on social media Tuesday by the John F. Kennedy Library Foundation.

“Our beautiful Tatiana passed away this morning. She will always be in our hearts,” the statement said. It did not disclose a cause of death or say where she had died.

Schlossberg told of being diagnosed with acute myeloid leukemia in May 2024 at 34. While in the hospital for the birth of her second child, her doctor noticed her white blood cell count was high. It turned out to be acute myeloid leukemia with a rare mutation, mostly seen in older people.

In the essay, “A Battle With My Blood,” Schlossberg recounted going through rounds of chemotherapy and two stem cell transplants and participating in clinical trials. During the most recent trial, she wrote, her doctor told he...