By Alys Denby Boris Johnson is never less than obsequious when referring to the late Queen in his new memoir Unleashed, but is he really a loyal subject? Westminster has been gripped by the release of Boris Johnson’s new memoir, Unleashed, with figures from all areas of public life frantically checking the index to see if they are mentioned.But amid the recriminations, self-justifications and catty asides (Greta Thunberg is described as a “whey-faced teenage Joan of Arc”), he is never less than obsequious when reminiscing about her late Majesty, Elizabeth II. He recalls that the day after the …