The Kennedy family also has ties to the building. Crain’s reports in 1948, a trial lawyer named John Bouvier Jr. died in the building. One of his sons, Wall Street stockbroker John Bouvier III, was Jackie Kennedy’s father. However, the former first lady did not grow up in the building herself.

Schlossberg, whose mother is John and Jackie Kennedy’s daughter, died on Tuesday, Dec. 30, at age 35. The news was shared by the social media accounts for the JFK Library Foundation on behalf of Tatiana’s extended family.

“Our beautiful Tatiana passed away this morning. She will always be in our hearts,” read the post, which was signed by “George, Edwin and Josephine Moran, Ed, Caroline, Jack, Rose and Rory.”

Earlier this year, Schlossberg announced that she had been diagnosed with acute myeloid leukemia in an essay published by The New Yorker in November 2025.

She shared after giving birth to her second child, doctors had discovered the disease while she was still in the hospital.

“I did not — could not — believe that they were talking about me,” she wrote of her diagnosis, which would require chemotherapy and a bone-marrow transplant. “I had swum a mile in the pool the day before, nine months pregnant. I wasn’t sick. I didn’t feel sick. I was actually one of the healthiest people I knew.”

Following her diagnosis, Schlossberg focused on her family which included her husband — whom she wed in 2017 — a son and her baby daughter.

“[George] would go home to put our kids to bed and come back to bring me dinner. I know that not everyone can be married to a doctor, but, if you can, it’s a very good idea,” she said in the essay. “He is perfect, and I feel so cheated and so sad that I don’t get to keep living the wonderful life I had with this kind, funny, handsome genius I managed to find.”

She began to worry that “my kids, whose faces live permanently on the inside of my eyelids, wouldn’t remember me.”

“My son might have a few memories, but he’ll probably start confusing them with pictures he sees or stories he hears,” she wrote.

“I didn’t ever really get to take care of my daughter — I couldn’t change her diaper or give her a bath or feed her, all because of the risk of infection after my transplants. I was gone for almost half of her first year of life,” she added. “I don’t know who, really, she thinks I am, and whether she will feel or remember, when I am gone, that I am her mother.”