9th March 2021 In normal times, when the whole Royal Family marches on to the balcony of Buckingham Palace at big events like Trooping the Colour, we’re greeted with a wall of Windsors, many of whom are HRHs. However, it’s not the easiest to work out who gets that style and who doesn’t because proximity to the throne doesn’t translate to automatic royal title. Who gets an HRH and who doesn’t is all down to the founder of the House of Windsor, King George V. On December 11 th 1917, he issued Letters Patent restricting the use of HRH and also sweeping away a whole host of royal styles, including Serene Highness and plain Highness. His decisions that December still rule the Windsors today. Here’s what it means in a modern context.