Old Etonian friend of George Osborne, 49, is found dead after ‘jumping off bridge for a prank’

The body of William Sinclair, 48, (seen on October 16, 2005) who had a child with a former dominatrix linked to the former Chancellor, was discovered two weeks ago in Budapest

An Old Etonian friend of George Osborne has been found dead by the River Danube amid reports he jumped in for a prank.

The body of William Sinclair, 48, who had a child with a former dominatrix linked to the former Chancellor, was discovered two weeks ago in Budapest, Hungary.

His death is being linked to an incident in September when three men were seen climbing on the city’s Chain Bridge by onlooker Antal Kloos.

The witness said one of the men was filming as the other appeared to jump, according to The Mirror, while local media reported that he removed his pants before plunging into the water.

In July, Will Smith filmed himself dancing on the same bridge in a video that led to criticism he was encouraging unsafe behaviour.

Mr Sinclair, who has long battled drug abuse, had a child with former madam turned reality TV show contestant Natalie Rowe in 1994.

Nicholas Sinclair, 23, is a male model and has become the face of New Look Men after featuring in campaigns for Adidas and Nike.

His father was in Oxford University’s notorious Bullingdon Club at the same time as Mr Osborne, when both men allegedly knew the former dominatrix.

Mr Sinclair was in Oxford University's notorious Bullingdon Club at the same time as Mr Osborne, pictured on June 19

Both men knew former dominatrix Natalie Rowe

Mr Sinclair was in Oxford University’s notorious Bullingdon Club at the same time as Mr Osborne, (left, on June 19) when both men knew former dominatrix Natalie Rowe (right, on Big Brother in June 2016)

Mr Sinclair's death is being linked to an incident in September when three men were seen climbing on the city’s Chain Bridge (pictured after the alleged jump) 

Mr Sinclair’s death is being linked to an incident in September when three men were seen climbing on the city’s Chain Bridge (pictured after the alleged jump) 

Ms Rowe, who used to be known as ‘Mistress Pain’, claimed Mr Sinclair once fought Mr Osborne at her flat in Kensington. She said the confrontation was sparked by her licking Mr Osborne’s ear. 

In Ms Rowe’s book, Chief Whip, she wrote: ‘They started tussling with each other. As I leapt out of the way the sofa tipped over and they rolled out on to the floor, still fighting.

‘It was the hugging-and-rolling kind of fight, rather than punching-and-kicking. I thought it was hilarious. I told them, “Come on, stop it, this is ridiculous!” By the time they’d calmed down and made up, nobody had thrown a punch.’

Mr Osborne has always denied being a friend of Rowe and rejected all the allegations she has made against him.

In 2005, a picture of Mr Osborne sitting next to Rowe appeared, next to a line of what appeared to be cocaine.

She said the party was held to celebrate her becoming pregnant by Mr Sinclair and added: ‘It was definitely cocaine on the table.

‘I remember vividly on that particular night I said to George, jokingly, “When you are prime minister one day I will have all the dirty goods on you” and he laughed.

Although the picture was taken before Mr Osborne entered politics, it was published when he had taken centre stage in the Conservative party as shadow chancellor.

Nicholas Sinclair, 23, (pictured) the son of William Sinclair and Natalie Rowe, is a male model and has become the face of New Look Men after featuring in campaigns for Adidas and Nike

Nicholas Sinclair

Nicholas Sinclair, 23, (pictured) the son of William Sinclair and Natalie Rowe, is a male model and has become the face of New Look Men after featuring in campaigns for Adidas and Nike

His response was to deny that there was cocaine on the table and insisted that any suggestion that he took drugs was ‘defamatory and completely untrue.’

A previous statement by Osborne said: ‘A friend of mine went out with a woman called Natalie and they had a child together. I met them occasionally in the autumn of 1993 and it soon became clear my friend had started to use drugs.

‘He became more and more addicted and I saw his life fall apart. With his other friends I tried to persuade him to seek treatment.

‘After rehabilitation he has now recovered and put his life back together.’ 

Read more at DailyMail.co.uk