Each December, the British royal family gathers at Sandringham Estate in Norfolk for a Christmas celebration. Like with their dinner parties and their signatures, the Windsors maintain a rigorous schedule of customs—some dating back to Queen…

Each December, the British royal family gathers at Sandringham Estate in Norfolk for a Christmas celebration. Like with their dinner parties and their signatures, the Windsors maintain a rigorous schedule of customs—some dating back to Queen…