Tatiana Schlossberg, the granddaughter of the late President John F. Kennedy, has died, her family announced Tuesday. She was 35.

Schlossberg, an environmental journalist, is the daughter of Kennedy’s daughter, Caroline Kennedy, and Edwin Schlossberg. She revealed in November that she had terminal cancer, according to the Associated Press.

The family statement was released on social media by the John F. Kennedy Library Foundation.

“Our beautiful Tatiana passed away this morning. She will always be in our hearts,” the family’s statement said.