Kathy Griffin's Sister Joyce Griffin Passes Away After Cancer Treatment

Three years after her losing her brother Gary to esophageal cancer, comedian and actress Kathy Griffin lost her sister Joyce to an undisclosed type of cancer on Thursday.

Joyce, who was 65 years old, had been undergoing chemotherapy in the months leading up to her passing. She had even inspired Griffin back in July to shave her head to raise awareness for cancer:

In solidarity with her sister, who is going through chemo, @kathygriffin shaved her head. Donate to @AmericanCancer: https://t.co/NazIbJ9FQ2 pic.twitter.com/UXr9YH1LYc

— Yashar Ali ???? (@yashar) July 31, 2017

Griffin posted a video in memory of her sister, saying, “My sister Joyce passed away peacefully last night.”

My sister Joyce passed away peacefully last night.
Check out this beautiful moment.
Support @AmericanCancer here: https://t.co/llSJg4sLGE pic.twitter.com/ElpwY937ZZ

— Kathy Griffin (@kathygriffin) September 15, 2017

Fans supported her with heartfelt messages.

May she have peace and comfort now. I’m into my third year as stage IV.
May your family find strength in the memories of happier times. xo

— Gia Sonata (@RedGia) September 15, 2017

I’ve loss two sisters and one brother, and I know very well what that pain is. This thread opened that pain for me again????

— Athea Hewitt (@hewitt_athea) September 16, 2017

I’ve lost two brothers. It was hard to imagine going on after the 2nd loss but 3. My heart breaks for you.

— ????Roslyn???? (@calirozzy) September 16, 2017

The American Cancer Society also shared a message.

Kathy we are so sorry for your loss. Our thoughts go out to you and your family. ❤️

— American Cancer Soc (@AmericanCancer) September 15, 2017