’s uncle is said to be entering the house when the show returns to in March.
Gary Goldsmith reportedly on Saturday (January 27) in a controversial casting.
It’s believed the outspoken businessman was locked in talks for a while.
‘Gary is champing at the bit to get on Celebrity Big Brother,’ a source said.
They added to : ‘He finalised the terms of his deal today and can’t wait to enter the house.’
It’s believed Gary, 58, was in the running for I’m A Celebrity… Get Me Out Of Here last year, but was rejected during the final stage due to fears his appearance could embarrass the Royal Family.
The source added: ‘The CBB team loves him because of his link to Kate and the fact that he’s confident and loud and won’t hold back.’
Gary has reportedly ‘made it clear he will talk about everything and anything’ and is ‘pretty outspoken’ when it comes to Prince Harry and Meghan Markle.
The source said: ‘Gary also holds a deep affection for Kate and Wills and will be able to give a fascinating insight into what it’s really like being related to the future King and Queen.
‘He could be TV gold and ITV knows it.
‘The deal he signed is for good money.’
When contacted for comment, a Big Brother spokesperson told Metro.co.uk: ‘Any names suggested for Celebrity Big Brother are purely speculation.’
When Gary first got married in 1991, Princess of Wales Kate was a bridesmaid.
Alongside older sister Pippa, then aged nine and seven respectively, Kate was captured by cameras waving outside the church.
Then in 1997, the sisters, then teens, were at his second wedding.
Gary previously found himself embroiled in Scan**l in his personal life, including in 2009 when he was caught cutting up lines of cocaine outside a party in Ibiza.
Eight years later, he also avoided prison after he was found guilty of hitting his fourth wife Julie-Ann in a drunken argument.
Rumours of his signing come after someone else with a royal connection slammed claims she too was taking part in CBB.
After Nigel Farage for his I’m A Celebrity stint, executives were reportedly ‘pulling out all the stops’ to line up 64-year-old Duchess of York Sarah Ferguson and hand her a £500,000 paycheque.
However, a spokesperson for
‘This story is complete nonsense,’ they said.
‘The Duchess will not be appearing on this show.
‘As is widely known, she does not consider reality TV formats.’
Meanwhile, the likes of Phillip Schofield and Katie Price are also bookies’ favourites.
It’s also believed and TV judge Louis Walsh are in advanced talks to take part.
Announcing CBB’s return, ITV previously said: ‘Celebrity Big Brother will see a new cast of famous faces isolated from the outside world as they embark on the ultimate social experiment, taking up residence in the iconic Big Brother house.
‘Leaving luxury behind, the celebrities will take part in weekly nominations and tough tasks with cameras capturing their every move.
‘Who will win the hearts of the nation, go all the way to the finish line and be crowned the winner?’
An official start date for the series is yet to be confirmed.
This will be CBB’s first series since the show was bought by ITV.
The civilian series returned with an almighty bang last September, running for six weeks with Jordan Sangha crowned the winner and walking away £100,000 richer in the end.
Celebrity Big Brother returns to ITV and ITVX later this year.