JFK’s grandson Jack Schlossberg, 32, attends sister Tatiana’s funeral after her death from cancer at 35; President Biden also present.

Her passing followed a grueling and deeply personal struggle with acute myeloid leukemia, an aggressive blood cancer that upended her life just as it was expanding.

The diagnosis, as she revealed only six weeks prior in a devastatingly candid New Yorker essay titled “A Battle With My Blood,” was discovered through routine tests following the birth of her second child in May 2024. The irony of her illness was not lost on her readers; she had been a marathon swimmer and a picture of health until the moment her blood work betrayed her.