Since I wrote my column about the architectural prowess of King Charles, a few people have told me that he isn’t quite the person they always thought he was. This didn’t surprise me – on this side of the pond, he’s mainly known as the man who broke Princess Diana’s heart.

But while the tale of Diana is a sad one, it’s not what defines him. To be clear, I was a huge fan of the princess – I almost even met her, when she flew to my home town by helicopter and spent a great deal of time speaking with every section of the gathered crowd except the corner we’d chosen to stand in....