Tatiana Schlossberg, John F. Kennedy’s granddaughter, has passed away at 35 after battling acute myeloid leukemia. The JFK Library Foundation announced Schlossberg’s passing on Instagram on Tuesday, December 30,

Tatiana Schlossberg, the granddaughter of President John F. Kennedy and Jacqueline Kennedy Onassis, has died.

Schlossberg had worked as a reporter covering climate change and the environment for The New York Times’ Science section.