Princess Isabella, who was born in April this year, was clearly not amused with this photocall. Clad in a jumpsuit and white bonnet, the young princess wriggled in her mother's arms, much to Mary's amusement. Last month the daughter of Their Royal Highnesses The Crown Prince and Crown Princess of Denmark was christened in Fredensborg Palace Church, Fredensborg.

19-month-old Christian waved to crowds on the castle steps, before becoming emotional under the watchful eyes of his parents as well as grandmother Queen Margrethe and great aunt Princess Benedikte.

The Danish Royals have been enjoying a fun-packed summer. Recently they enjoyed a day out at Denmark's Legoland, where Prince Christian enjoyed train and plane rides with his parents. Meanwhile, Princess Isabella was content to snooze in her pram.

Frederik and Mary have also taken part in horse riding and cycling around Grasten Castle. The palace - in the south of the country - is a favourite retreat for the Danish Royal Family.

The main house - believed to be where Danish author Hans Christian Andersen wrote 'A Little Match Girl' - is known for the beauty of its Venetian doors opening onto manicured lawns and gravel walkways.

Frederik and Mary recently returned from a holiday in Croatia with Christian and Isabella.