United Kingdom, Dec. 24 -- King Charles gives his staff a hand-signed Christmas card and a personal gift each year.

The 77-year-old monarch and his wife Queen Camila always attended the annual party for employees when he was still Prince of Wales, while other members of the family also dropped in, and after the celebrations, monogrammed presents would be handed out.

Speaking to Heart Bingo, former royal gardener Jack Stooks said: "Members of the Royal family would often attend.

"The King and the Duchess were there every single year, and would mingle with the staff. Prince William and Harry - they would come and go.

"During the night, we would all get to chat to the family to get to know them a bit better.

"All of the staff would be g...