King Charles III was diagnosed with cancer this year after treating an enlarged prostate. His daughter-in-law, Kate Middleton, completed chemotherapy in September.

As King Charles III continues his cancer journey, his treatment is “moving in a positive direction,” a Buckingham Palace source told NBC News Dec. 20.

King Charles III reportedly plans to resume full royal duties in 2025, including major UK and international visits .

King Charles ’ cancer treatment will continue into the New Year, but it is moving “in a very positive direction,” palace sources have confirmed. Aides have signaled that Charles, 76, who has been under medical care for his cancer diagnosis since early February, will continue treatment towards his one-year anniversary as a "managed condition."

King Charles thanked the medics who cared for him and Princess Kate, after they both underwent treatment for cancer this year, in a Christmas message.

Kate Middleton and her father-in-law King Charles celebrated Christmas together on Wednesday after they both had a “brutal” year in which they each battled cancer. Royals Celebrate Christmas Kate, 42,