Victoria Beckham trademarks her five-year-old daughter Harper's name

Harper’s older siblings, Brooklyn, 18, and Romeo, 14, Cruz, 12, have also had the trademark treatment

(Getty)

It’s what every five year old dreams of - the intellectual property rights to their own name.

And for Harper Seven Beckham, it has become a potentially lucrative reality after her mum, Victoria Beckham, registered a trademark for the unique name with European and British authorities.

Harper’s older siblings, Brooklyn, 18, and Romeo, 14, Cruz, 12, have also had the trademark treatment.

The youngest three will have to wait until they are 18 to take advantage, however. As guardian, Victoria will be in charge of the rights until then.

Harper - whose full name is an amalgamation of the author of Victoria’s favourite book, To Kill a Mocking Bird and David’s old squad number at Manchester United - will soon be able to collect royalties from using her name as a brand for products such as toys, make-up, books and clothes.

The application also covers "entertainment services" meaning she will have exclusive rights to use her the Harper Beckham name in music TV and film.

According to a European intellectual property office records, Posh registered the Harper Beckham trademark in December.

David is no stranger to making the most of lucrative image rights. He registered his own name in 2000 and as his empire expanded, added DB07 in 2002, DB23 and simply “Beckham” in 2010. Victoria trademarked her name in 2001

The Beckhams’ business empire, Brand Beckham, encompasses a fashion line, perfume, a whiskey brand and countless lucrative endorsements.

The couple’s total wealth was estimated to be £508 in 2016, according to analyst at the London School of Marketing. That’s more than the Queen’s fortune of £340m.

Oldest son Brooklyn has begun to follow in his father’s footsteps, having made money from modelling shoots, while in 2014, Romeo appeared on Burberry’s Christmas ad campaign, after beginning working for the brand at the age of 10.

Relying on the family brand hasn't always been plain sailing however. Last year Brooklyn was accused by fashion photographers of benefiting from "sheer nepotism" after he landed a job as photographer for Burberry.

David later came out in defence of his son's photography skills. "Whether people believe it or not, he’s got talent. He’s got a great eye—and proven that in the images he’s taken,” he said.