Katherine Schwarzenegger Responds to Tatiana Schlossberg's Cancer Diagnosis

Schwarzenegger expressed her "awe" at her cousin's resilience after the journalist and mother of two shared that she has an incurable cancer.

Katherine Schwarzenegger shared her "awe" of cousin Tatiana Schlossberg after Schlossberg revealed in an emotional essay that she has terminal cancer.

Schwarzenegger urged others to read Schlossberg's essay for The New Yorker in an Instagram post on Nov. 23 in which she showed support for her "extraordinary cousin," who is the granddaughter of late President John F. Kennedy.

"This is a profound piece written by my extraordinary cousin, Tatiana," Schwarzenegger wrote. "It’s been shared by many and should be read by all. I have only tears and anger reading that this is her reality. She has lived this experience with so much grace and I am in awe of her as a human, mother, wife, daughter, writer and fighter."

Schlossberg, 35, shared in an essay titled "A Battle With My Blood" that she has acute myeloid leukemia, writing that her doctor told her that “he could keep me alive for a year, maybe.”

Schlossberg and her two siblings, sister Rose Schlossberg, 37, and younger brother Jack Schlossberg, 32, who just announced he’s running for Congress in 2026, are the only grandchildren of Kennedy. Tatiana is a journalist, author and mother of two.

She wrote that she is trying to spend as much time with her children as she can.

“Mostly, I try to live and be with them now,” she writes in the essay. “But being in the present is harder than it sounds, so I let the memories come and go. So many of them are from my childhood that I feel as if I’m watching myself and my kids grow up at the same time.”

Schwarzenegger also expressed her appreciation for the team caring for her cousin.

"I am and continue to be grateful for all the doctors and nurses helping her and encourage you to read her words about how the state of the country, the cuts and uncertainty, impacts and terrifies those in medicine and receiving treatment like Tatiana has been over the past year and a half, and continues to receive," she wrote. "Praying for and loving her and her family. ♥️"

Schwarzenegger's mother, NBC News special anchor Maria Shriver, also voiced her support for Schlossberg in a post on Instagram. Schlossberg is the daughter of Shriver's first cousin, Caroline Kennedy.

Shriver called Schlossberg's essay “a reminder to be grateful for the life you are living today, right now, this very minute.”