The former England captain and Manchester United star was recognised for his services to sport and charity during a ceremony at Windsor Castle.

His wife, Lady Victoria Beckham, who designed the grey suit, accompanied the 50-year-old footballing icon to the event.

Recalling his interaction with Charles, Sir David told the PA news agency: “He was quite impressed with my suit.

“He’s kind of the most elegantly dressed man that I know, so he inspired quite a few of my looks over the years and he definitely inspired this look.

“It was something that my wife made me.

“I looked at old pictures of him when he was quite young in morning suits and I was like, OK, that’s what I want to wear, so I gave it to my wife and she did it.”

He said he has felt emotional over the knighthood since he was recognised in the King’s Birthday Honours earlier this year.

“I’ve been very obviously lucky in my career to have won what I’ve won and done what I’ve done but to receive an honour like this, of a knight, is beyond anything that I ever thought that I would receive,” Sir David told PA.

“To be honest, a young boy from the East End of London, born in Leytonstone, and here at Windsor Castle, being honoured by His Majesty the King – the most important and the most respected institution in the world – it’s quite a moment.

“This is without doubt my proudest moment.”

Also among the personalities honoured on Tuesday were Nobel Prize-winning novelist Sir Kazuo Ishiguro and West End performer Dame Elaine Paige.