His grandfather, Prince Philip, is famed for driving a London taxi around town, and it seems William has learnt a trick out of the old man's book.

For a brilliant piece in the Daily Mail today by the Mail's Royal correspondent, Rachel English, which explores the couple's life on Anglesey (now they have left, the locals are talking) describes among other details, how the pair would drive around the island in a battered white Ford Transit van, wearing baseball caps and sunglasses when they wanted to venture out incognito.

‘Everyone thought it was hilarious when they twigged it was them. It was very funny — William as a white van man,’ says a local.