A charitable enterprise, established by the Duke and his wife the Duchess, also puts the couple 30th in the UK in the annual Sunday Times Giving List.

The region’s two wealthiest musicians have seen their finances take a big hit over the past 12 months.

Wallsend-born Sting, sixth on the North East list, has seen £20m trimmed off his fortune, down to £180m, despite the $360m generated by The Police’s reunion tour.

And Mark Knopfler, the former Dire Straits guitarist and singer who was raised in Newcastle, is valued at £60m, down £10m from this time last year, putting him equal 19th on the regional list.

Former Newcastle owner Sir John Hall also makes the cut, his fortune of £65m putting him 18th in the region and 863rd nationally.

Other familiar names on the list include Graham Wylie, founder of Newcastle-based software giant Sage. Coming in seventh on the list, his value has fallen by a quarter, from £200m to £150m