Following the Princess of Wales' statement that she had cancer, King Charles said he was "so proud of Catherine for her courage in speaking as she did."
Charles, who was also diagnosed with cancer following a treatment for an enlarged prostate, is still in "closest contact with his beloved daughter-in-law," according to Buckingham Palace, reports CNN.
Prince Harry, Meghan hope Kate and family can heal ‘privately and in peace’
"Both Their Majesties will continue to offer their love and support to the whole family through this difficult time," said the palace.
The princess's health status was updated following her successful operation on her abdomen on January 16. She stayed in a London hospital for 13 days after the operation and, per the doctor's suggestion, has been away from the public eye during her recovery, the report said.
What is known about Kate's cancer diagnosis
Kate was seen in public for the first time since January, when she went to a farm store with her husband Prince William last weekend.
Kate, Princess of Wales, says she has cancer and is undergoing chemotherapy