On March 22,

, announced in an emotional video

.

She learned about the disease after undergoing a major abdominal surgery in January of this year.

Kate is currently undergoing chemotherapy.

This news shocked the world.

The princess, who is adored not only in Great Britain, but also in other countries, expressed words of support from ordinary people and famous personalities.

A post with touching words was also written on Instagram by a native of Wales, the Welsh actress Catherine Zeta-Jones.

"Wales and the world are with you, Your Royal Highness the Princess of Wales," the actress wrote, adding that she was sending her love.

View this post on Instagram

A post shared by Catherine Zeta-Jones (@catherinezetajones)

In addition to the post on her page, Catherine Zeta-Jones also left a message under the video of the princess.

"Your strength and grace are unwavering, you are in my thoughts," she wrote.

Message from Catherine Zeta-Jones

also publicly expressed his support for the princess

.

He shared a cute baby photo of himself with Kate on his page.