When Prince Harry and Meghan Markle staged their dramatic departure from the royal family five years ago, there were various conditions attached to their ‘Megxit’. One of the most insistent was that the pair were no longer allowed to use their HRH, or Royal Highness, titles. These were solely reserved for those working royals who are expected to perform often arduous and tedious duties, rather than a pair of chancers who saw the opportunity to monetise their birthright (him) and the chance to cash in on an advantageous marriage (her).