UK Royal Family
The Prince of Wales stepped out for his first in-person engagement after the Princess of Wales shared her health update on March 22.
The Netflix show ended its six-season run last year.
The royal appearance comes a little over a week after the Princess of Wales revealed she'd been diagnosed with cancer.
Buckingham Palace previously announced on February 5 that King Charles had been diagnosed with cancer.
The Princess of Wales shared the health news in a video statement on Friday.
Charles Spencer shared a message for the Princess of Wales after she released a video discussing the status of her health.
The Princess of Wales said cancer was detected after her surgery earlier this year.
A spokesperson for the monarch said they have been in the "closest contact" in recent weeks.
The Princess of Wales’ younger brother, James, shared a sweet childhood photo in the wake of her health announcement.
The Princess of Wales spoke about her diagnosis and treatment in a video released on Friday.