Princess Josephine of Denmark, 13, sports the colours of the Danish flag as she watches England at the Euros with Prince William and King Frederik

Princess Josephine of Denmark donned patriotic colours as she joined her father King Frederik and Prince William to watch England take on Denmark in the Euros this evening in Frankfurt.

The Princess, 13, the youngest daughter of Frederik X and Queen Mary of Denmark, wore a red and white striped T-shirt and navy blazer to watch the group stage game, with England disappointing fans in a 1-1 draw.

Josephine, who is fourth in line to the throne behind her twin brother Prince Vincent, accessorised her outfit with necklaces and wore her long brown hair loose.

Keeping a smart casual look, she opted for pale blue jeans and a pin with the Danish flag. 

Princess Josephine, 13, the youngest daughter of King Frederik X (right) and Queen Mary of Denmark posed with Prince William (left) ahead of the England v Denmark match on Thursday

Princess Josephine greeted the Prince of Wales with a handshake and oozed confidence as the pair exchanged a few words

Princess Josephine wore a red and white striped T-shirt - a nod to the Danish flag - and her father also opted for a casual look

The trio had the best seats in the house as they watch the game

At one point the princess cuddled up to her father 

Keeping it cordial despite going head to head, Josephine shook hands with William -who is a distant cousin.

She later stood between William and her father as the three royals posed for a photograph that was posted on The Prince and Princess of Wales' X (formerly Twitter) account just before the match began.  

The photograph was captioned: 'May the best team win' and illustrated with the flag of Denmark, the flag of England and a football.  

Smiling and with her arm around her father, the youngest of the Danish royals looked relaxed in the image. 

On Sunday, Princess Josephine, Prince Vincent and their father posed in Denmark's national team's shirts ahead of the country's first Euro 2024 match.

Taking to Instagram, the monarch, 56, wished the team 'great luck' in their match against Slovenia from the Fredensborg Palace gardens.

The father-of-four smiled proudly next to his two youngest children and wrote: 'In a little while it starts, and at our place we are just about ready for Denmark's match start.

'My family and I wish @herrerlandsholdet a great luck for the European Championships.'

Josephine was glowing as she smiled for the picture and accessorised her football jersey with an elegant pearl necklace.

The teenager enjoyed the match as she watched alongside her father

The teen was transfixed on the screen during the game

King Frederik X (pictured centre), Princess Josephine (pictured right), and Prince Vincent (pictured left), appeared cheerful as they wished Denmark 'great luck' for their Euros 2024 debut against Slovenia 

Meanwhile, her twin brother Prince Vincent appeared cheerful as he beamed for the group shot. 

Frederik looked every inch the proud father as he held his arms around his two youngest children.

Queen Mary of Denmark was absent from the family photograph, along with the couple's elder children, Crown Prince Christian, 18, and Princess Isabella, 17.

Queen Mary's absence comes amid rumours of martial struggles, which date back to last year when King Frederik was pictured enjoying an evening out in Madrid with Mexican socialite Genoveva Casanova.

The publication of the photos resulted in Genoveva, 47, issuing a statement denying a romantic relationship between herself and the royal and slamming the 'malicious' rumours.

Earlier this month, King Frederik X and Queen Mary of Denmark put on a united front as they marked the 175th anniversary of the Constitution in Copenhagen.