Jack Schlossberg Sister Tatiana Schlossberg Remembered in Heartfelt Tribute After Death at 35
Jan. 5, 2026 — New York Jack Schlossberg honored his sister Tatiana Schlossberg, who died on Dec. 30, 2025, at age 35 from leukemia, with an emotional Instagram tribute quoting her 2022 book Inconspicuous Consumption and sharing a childhood photo.
Tatiana Schlossberg, an environmental journalist and granddaughter of President John F. Kennedy, succumbed to terminal cancer after a battle detailed in a New York Times essay. The obituary highlighted her career and family support, including a stem cell donation from Jack Schlossberg’s sister Rose Schlossberg.
Jack Schlossberg’s Tribute to Sister Tatiana
Jack Schlossberg, son of Caroline Kennedy, posted the tribute days after Tatiana’s death, focusing on her work and their sibling bond. Coverage in People Magazine, TODAY.com, Town & Country, and Page Six described the post as touching, amid reports of Jack visiting Tatiana’s NYC apartment.
BBC News announced her death, referencing family photos with Jack Schlossberg sister Tatiana.
Family Support and Rose Schlossberg’s Role
Jack Schlossberg sister Rose Schlossberg, the youngest sibling, donated stem cells to aid Tatiana’s treatment, as noted in family profiles. People Magazine profiled Caroline Kennedy’s children, highlighting Rose’s resemblance to Jackie Kennedy and events with Jack Schlossberg and sister Tatiana. A CBS News photo captured Tatiana, Jack, and Rose together amid Jack’s political ambitions.
Earlier coverage from E! News and NBC News detailed Tatiana’s diagnosis and support from Jack Schlossberg during his congressional run announcement.
Sibling Bond and Kennedy Legacy
Page Six emphasized the close relationship between Jack Schlossberg and sister Tatiana. An X post shared a 1998 family photo featuring Jack with relatives, underscoring the Kennedy legacy amid the family’s grief.
