Conde Nast's chairman Nicholas Coleridge has revealed how Prince William was cruelly teased by classmates over the topless pictures that were published of Princess Diana in 1996.
Speaking in his soon-to-be published memoirs The Glossy Years, Nicholas recalled how the late Diana visited him for a lunch at Vogue House amid the picture scandal, and revealed that a distressed William, then 14, had called him from Eton.
According to Nicholas, Diana revealed that William was being teased by fellow pupils over the 'size of her breasts', before she asked the chairman whether he thought she was 'too small'.
Writing, Nicholas remembered how she visited him the week that pictures of her sunbathing topless on a Spanish balcony were published, and said: 'Nicholas, can I ask you something?
'Please be truthful. Did you see the photograph of me in the Daily Mirror? The topless one?'.
She continued of William, then 14: 'He was so upset. He said some of the boys were teasing him saying my t**s are too small,' before adding: 'Are my breasts too small, do you think?'.
Revealing how he went 'breathless and as red as a guardsman's tunic', he reassured her that her breasts were 'perfect', and told her not to worry'.
In 2017 Prince William sought £1.3million compensation over topless photos of his wife Kate Middleton, which were published in French Closer magazine in 2012.
The case dated back to September 2012 when William and Kate were pictured relaxing on the terrace of a chateau belonging to the Earl of Snowdon, William's cousin and the late Princess Margaret's son, in the southern region of Provence.
Long-lens cameras captured Kate topless, while only wearing a pair of bikini bottoms.
One particularly intimate image showed William rubbing suncream into his wife's skin, and was said to have caused particular upset.
The Duke of Cambridge said the images were 'all the more painful' as they reminded him of the way his mother died, as she was pursued by paparazzi photographers in Paris 20 years ago this August.
Publication of the photographs triggered a dramatic reaction in Britain, with media organisations deciding not to publish them.
Prince William was known to be particularly angry at the way Kate was treated, and pushed for prosecutions from day one.
Later that year the French celebrity magazine was ordered to pay 103,000 euros (£92,000) in damages to the Duke and Duchess of Cambridge for publishing topless photos of Kate Middleton.
While the amount is one of the highest ever in a privacy case in France, it is a fraction of the £1.4million the couple wanted over the grainy images.
© Associated Newspapers Ltd.