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

The British monarch recorded his annual holiday address from the chapel of a former hospital, rather than from a palace.

King Charles III has used his Christmas message to hail the efforts of healthcare workers and all those who support others, before praising the medical staff who provided “strength, care and comfort” during his and the Princess of Wales’ cancer treatments.

As Charles put it, “I am deeply grateful, too, to all those who have offered us their own kind words of sympathy and encouragement.”

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.

King Charles III used his annual Christmas address to thank the medical workers who have provided care for the royal family and hailed the humanitarian workers working “tirelessly” to provide aid

King Charles has strayed from royal tradition with his year’s Christmas speech. The monarch, 76, who opted to break tradition last year by writing the speech himself, has prerecorded his festive broadcast in a different location to that of previous years.

King Charles III used his annual Christmas message Wednesday to hail the selflessness of those who have cared for him and the Princess of Wales this year, after both were diagnosed with cancer. The 76-year-old monarch said he and his family are “continually” impressed by those who dedicate their lives to helping others.

Britain’s King Charles thanked medical workers who treated him and Princess Kate after their cancer diagnoses in his annual Christmas message on Dec. 25.

His Christmas Day message follows a year that saw him and the Princess of Wales treated for cancer.