Ahead of the couple's coronation tonight.
And Crown Prince Frederik will use it for his first procession as King.
Including the unexpected historical figure behind Princess Mary's favourite tiara.
He's definitely one to watch!
Double the royal cuteness: Everything we know about Prince Vincent and Princess Josephine, Mary and Frederik’s twins
They look like little replicas of their parents!
Crown Princess Mary’s mini-me: Everything you need to know about her and Frederik’s eldest daughter, Princess Isabella
The young princess, who clearly resembles her mother, is now 16 years old.
Queen Margrethe has announced that she is to abdicate.
And Prince Frederik is set to join her...
From tiaras to eligible princesses, the young prince's birthday was the royal event of the season.