Tatiana Schlossberg, an environmental journalist, author, and granddaughter of President John F. Kennedy, has died at 35 after a highly publicized battle with an aggressive form of blood cancer. Her family announced her death on Tuesday through the John F. Kennedy Library Foundation, saying in a brief statement, “Our beautiful Tatiana passed away this morning. She will always be in our hearts.”​ The message was signed by her husband, George Moran, their children, and her immediate and extended family.​

Schlossberg’s death comes just weeks after she publicly revealed in The New Yorker that she had been diagnosed with acute myeloid leukemia, a fast-moving blood cancer, with a rare mutation typically seen in older patients. She wrote that she had been given less than a year to live with the mutation, known as Inversion 3, making the disease especially difficult to treat.​

Battle with leukemia

Schlossberg wrote that doctors first detected abnormalities in her blood counts shortly after the birth of her second child in May 2024, when a physician noticed her extremely elevated white blood cell levels. What initially could have been dismissed as a pregnancy-related complication instead led to a cascade of tests that confirmed leukemia at a moment when she was recovering from childbirth and caring for a toddler at home.​