King Charles III is expected to use his annual Christmas message to highlight health workers, at the end of a year in which both he and the Princess of Wales were diagnosed with cancer.

After a year that saw both King Charles and Kate Middleton diagnosed with cancer, “Obviously it made sense it had some form of health connection," a source said

King Charles will deliver his Christmas Day message from a church with links to the medical community, Buckingham Palace said Monday, in a break with tradition amid his continued cancer treatment.

While Christmastime is full of traditions, King Charles has broke from royal protocol for one of his most anticipated duties. RadarOnline.com can reveal Charles opted to film the annual Christmas address at a former hospital chapel, marking the first time in 18 years the annual speech will not be recorded at a royal residence.

King Charles will deliver his traditional Christmas Day message from a former hospital chapel, Buckingham Palace said on Monday, in a break from tradition and a nod to the British monarch's ongoing treatment for cancer.

King Charles III will spend Christmas with Prince William and Princess Kate during a celebration steeped in tradition, but also in the wake of recent scandal. Recent years have seen Prince Harry and Meghan Markle's broadsides against the monarchy provide an unwanted backdrop to royal celebrations,

It's been a tough year for the Firm - with both Kate and King Charles being diagnosed with different forms of cancer and their ongoing estrangement from Harry and Meghan