Britain's Princes William and Harry cheered on opposing teams at the Rugby World Cup on Saturday (26.09.15).

Prince Harry and Prince William

Prince Harry and Prince William

While Harry showed his support for England in white, William and his wife Catherine, Duchess of Cambridge, wore red for Wales as they all watched the game at Twickenham Stadium in London.

William is the vice patron of the Welsh Rugby Union and Harry is vice patron of England's Rugby Union, as well as the honourary president of the Rugby World Cup 2015.

Wales won the game 28-25, leaving William and Catherine thrilled.

Speaking previously to the Welsh team, William said: "Unfortunately, I will be watching you with my brother, so I will need a Wales win more than ever."

William and Catherine spent the first year of married life together living in Anglesey in Wales where he worked as a search and rescue helicopter pilot.

They moved back to an apartment at Kensington Palace after their son George was born two years ago, and have since welcomed a daughter, Charlotte.

Catherine's appearance at the game was one of her first public outings since Charlotte's birth in May.