A portrait of a relaxed-looking Prince Harry sharing a joke with his father and brother has been released to mark his 20th birthday on Wednesday.
The black and white image of Princes Charles, William and Harry was shot by fashion photographer Mario Testino.
It was taken during a shoot for the 2004 Royal Christmas card but it was decided to release this informal out-take for Harry's birthday.
Testino is well-known for his pictures of Princess Diana.
He has also previously worked with Prince Charles.
The Peruvian-born photographer said: "They were not
laughing at anything in particular.
"It is just the way they relate to each other. They seem to have a uniquely close father-son relationship."
Testino said he felt privileged to briefly be part of the princes' "private world" and said there was an intimacy between them that is rarely seen by the public.
He previously took the official pictures for Harry's 18th birthday, William's 21st and last year's Christmas card, which showed the Princes in a treehouse in the grounds of Highgrove.
In the new image, which is not an official photograph, the princes are seated outside Highgrove's Cotswold stone Orchard Room which is used for meetings and
Harry's private birthday celebrations are expected to be low key this year.
He is preparing for his Sandhurst entrance assessments in a bid to secure a place on the Army's elite officer training course.