Celebrity

Jack Schlossberg opens up about older sister’s death

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Jack Schlossberg, grandson of the late US President John F. Kennedy, has opened up about this the death of his sister.

Schlossberg, who is running for Congress in New York, spoke about the loss of his older sister, Tatiana Schlossberg

“I don’t think I’ll ever get over it,” Jack said Vanity fair in a recent interview.

Jack Schlossberg, grandson of the late US President John F. Kennedy, has opened up about his sister’s death. (Corbis via Getty Images)

He added: “The world will never be the same for me, not only since she passed away, but also since I was diagnosed with cancer about two years ago.”

‘She was my best friend. We could finish each other’s sentences,” he continued.

“I miss her all the time. I think about her every day.”

Tatiana revealed that she had been diagnosed with a terminal blood cancer called acute myeloid leukemia in an essay published by The New Yorker last year.

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Jack Schlossberg, grandson of the late US President John F. Kennedy, has opened up about his sister’s death. (AP)

In her essay, she wrote that she was diagnosed with the disease just hours after giving birth to her second child in May 2024.

She passed away just a few weeks later, on December 30, 2025

Jack told Vanity Fair that his sister’s death motivated him to “do everything I can in every waking moment.”

“I realize it might as well have been me.”

The journalist had only revealed her terminal cancer diagnosis in November. (Getty Images for Junk)

“I have an obligation to her, and not just to myself, to make the most of my precious life and all that I have been given in this life to give back to others and to ensure that we can fund treatments for the type of cancer that took her life, and for other types of cancer.”

“It has made me all the more motivated, committed and focused to make the most of my life, and I believe there is no higher calling than public service,” he added.

“To me, politics is a noble profession, and I would love to serve this district.”

Schlossberg, pictured with her mother, brother Jack and Prince William in 2022, is survived by two children. (Thread Image)

In the essay she wrote before her death, she explained the disbelief she felt when she received her diagnosis after a routine blood test during labor at the hospital.

“I couldn’t believe they were talking about me,” she wrote.

“I had swam 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.”

Tatiana spent five weeks at Columbia-Presbyterian Hospital after giving birth before being transferred to Memorial Sloan Kettering Hospital for a bone marrow transplant.

She then underwent chemotherapy at home before taking part in a clinical trial of CAR-T cell therapy (a form of immunotherapy against certain blood cancers) in January.

Despite these efforts, the author was eventually told she had only one year to live.

Schlossberg was the second of Caroline Kennedy and Edwin Schlossberg’s three children, including sister Rose and brother Jack.

She shared two children, Edwin and Josephine, with husband George Moran

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