I came across this article in my travels across the web. I do not have any evidence to back up what this author says, but if it is true, it is very illuminating.
The fairytale nonsense is that ‘HRH’ stands for His (or Her) Royal Highness, but what the hell is a ‘highness’ apart from a totally ridiculous word and concept?
Thus the meaning of ‘HRH’, Heiliges Römisches Hüter, is to identify a Holy Roman Empire Guardian, a guardian of the secret, who leads their herd of cattle to the slaughter for the Red Dragon’s pleasure and delight.
Read more: http://realityreviewed.com/HRH.htm