One month before John F. Kennedy’s granddaughter Tatiana Schlossberg died, she revealed she had terminal cancer and felt she was adding to the ongoing tragedy that has plagued her famous family’s life.

Tatiana Schlossberg, the daughter of Caroline Kennedy, has died following a battle with acute myeloid leukemia.

Environmental journalist Tatiana Schlossberg, one of three grandchildren of the late President John F. Kennedy, has died after a battle with leukemia.

Who are John F Kennedy's kids and grandkids? Read about Jackie O and JFK's family history, including JFK Jr. and Tatiana Schlossberg, and what happened to them.

Toby Morton shared a screenshot of the message to Threads, where he wrote: "I'm speechless and incredibly grateful."

Environmental journalist Tatiana Schlossberg, granddaughter of President John F. Kennedy and Jacqueline Kennedy Onassis, passed away at 35 after battling acute myeloid leukemia.

Tatiana Schlossberg, President John F. Kennedy's granddaughter and Caroline Kennedy's daughter, has died. She was 35. Her death was confirmed Dec. 30 by the The John F. Kennedy Library Foundation, the non-profit organization that provides financial support, staffing and creative resources for the former president's library.

Tatiana Schlossberg, granddaughter of the 35th U.S. president, John F. Kennedy, died on Tuesday after revealing in a November essay that she had been diagnosed with a rare form of leukemia. She was 35.

Tatiana Schlossberg, granddaughter of JFK and a prominent environmental journalist, has died of leukemia at age 35.

Tatiana Schlossberg, 35, died Dec. 30. She revealed her terminal acute myeloid leukemia diagnosis in an essay in The New Yorker.

Even decades after his death, JFK Sr. and the rest of the Kennedy clan are the subject of lasting infatuation. Explore the Kennedy family tree, from Jackie O. to Jack Schlossberg.