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

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