Charles cancer treatment will continue into the New Year with an expert in the medical field explaining why that may be.

King Charles III shared his gratitude this holiday season and thanked the “selfless doctors and nurses” who helped him and daughter-in-law Princess Kate Middleton fight their separate cancer battles earlier this year.

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