Mike and Zara Tindall have been tipped to become "PR gold dust" for the Royal Family, it has been claimed.

As Zara attends the last day of the Blenheim Palace Horse Trials in Oxfordshire, one former royal aide has praised Princess Anne's daughter for being "successful in her own right".

The 42-year-old is known for having a successful career as an equestrian, with her husband Mike taking pride in his previous successful rugby career.

Zara and Mike's careers separate from the Firm and has seen them earn financial independence - something that has had a positive effect in their success and popularity.

As reported by GB News, this self-sufficiency - combined with their sense of approachability - has led to some suggesting they could be "PR gold dust" for the royals.

Despite not being working members of the Royal Family, Zara and Mike Tindall - who share three young children - have grown in popularity in recent years.

According to YouGov polling, Zara consistently ranks as the sixth most popular royal and the eighth most popular public figure in the UK - with her position surpassing Queen Camilla.

This surge in Zara and Mike's popularity has led to calls for them to take on a more active role within the Royal Family.

Previously speaking of the couple, former Downing Street head of press, Giles Kenningham, commented: "The Tindalls work very well on that level – they have had their own careers, they are independent financially and they conduct themselves well. You certainly don't see them staggering out of the back of bars."

Since Thursday, Zara has been taking part in the Blenheim Palace Horse Trials. Showcasing her success, Zara previously secured a silver medal as part of the British Equestrian team during the London 2012 Olympics.