Lady Frederick Windsor—a.k.a. actress Sophie Winkleman—is married to King Charles's cousin, Lord Frederick "Freddie" Windsor, and during a different Christmas carol concert earlier this week, she revealed a tidbit about Kate's cherished event that has never been mentioned before.

The Prince and Princess of Wales will reportedly not join the rest of the Royal Family for Christmas lunch this year, but another surprise royal will attend instead, it has been claimed. Prince William and Princess Kate are expected to attend the Christmas Day service at St Mary Magdalene on the Sandringham estate but according to a royal commentator,

Kate Middleton and Prince William plan first Christmas together since the Princess of Wales concluded her chemotherapy treatment for cancer at Sandringham.