Now that Amazon Prime has put out a new series about Leonardo, here we go again with the "da Vinci" nonsense. It's in the headline of the news item about it on the BBC website and it's repeated throughout the article. "Da Vinci" is not his surname. It refers only to the place he comes from. Calling him "da Vinci" is as daft as calling Henry VIII "the Eighth" or Eric "the Red." Leonardo will do fine...