The idea that the Queen isn’t interested in clothes has always struck me as wide of the mark. I’m not suggesting Her Majesty wouldn’t prefer curling up with a copy of Horse & Hound over an issue of Vogue, but no one can look as immaculately turned out as she has, successfully negotiating her way through 90 years of potential sartorial landmines, without acquiring an impressive knowledge and appreciation of cut, colour and silhouette, as well as a thorough understanding of the potency of genuine style.