It dates from the time of William the Conqueror and has become an enduring symbol of timeless tradition.
But now Windsor Castle is being dragged into the 21st Century – with the addition of two charging points for electric cars.
The Royal Household has applied for planning permission for the pillars to be installed on the cobbled streets within mews that were originally built as a horse-riding base for Queen Victoria.
A planning application has been submitted to install two electric car charging points at Windsor Castle, pictured
Royals have increasingly embraced electric technology, with Harry and Meghan last year driving from the castle to their wedding reception in a £350,000 silver blue Jaguar-E Type Concept Zero – an electric version of the 1968 British classic.
Prince Philip drove one of the first prototype electric vehicles in the 1970s, and Prince Charles reportedly got an electric car last October for his London engagements.
The Queen has also voiced concerns about the environment and global warming – but it is not known if she owns electric vehicles.
The application for two new charging points – in a part of the castle out of bounds to the public – has been lodged with the Royal Borough of Windsor and Maidenhead.