Royal diary: What's coming up this week

Princess Kate's annual carol concert is a melodious highlight

Queen Camilla invites children to decorate the Christmas tree at Clarence House

In the words of Mariah Carey, it's time! The festive season is here and the royals are getting into the Christmas spirit this week...

Tuesday

The Princess Royal will be a guest at the Festival of Nine Lessons and Carols at All Hallows overlooking the Tower of London. 

Her attend…