Six buildings in central London are royal palaces – but only three of these (Buckingham Palace, Kensington Palace, and Saint James’s Palace ) are still used as homes by members of the royal family. In addition, Clarence House is a royal home but not a royal palace. Three older palaces (Placentia Palace, Richmond Palace, and Nonsuch Palace) on the outskirts of London have now vanished except for memorial plaques while Windsor Castle, Hampton Court, and Kew Palace are intact and open to visitors. Windsor is the royal family’s oldest home, and where Saint George’s Chapel is the final resting place of many monarchs, including the late Queen Elizabeth I.

Commander Mansfield Cummings, founding father of the Secret Service, has at last received his Blue Plaque. It was unveiled Monday 30 March, with your correspondent in attendance, not, as I had anticipated at the site of the Cummings’ 1923 death – corner of Melbury Road and Addison Road, W14 – but the site of the first proper SIS office and workshop on top of the National Liberal Office, aka Horse Guards Hotel.