A 20-year-old man has been charged with a string of offences after an alleged break-in at Windsor Castle on Christmas Day last year.
Jaswant Singh Chail, from Southampton, was charged on Tuesday with threatening to kill, possession of an offensive weapon and an offence under the Treason Act.
His arrest is the result of an investigation by the Met Police Counter Terrorism Command.
He is currently detained ahead of an appearance at Westminster Magistrates’ on August 17.
Officers from Thames Valley Police (TVP) and the Metropolitan Police responded to a security breach about 8.30am on Christmas Day.
At the time it was reported that security controllers monitoring CCTV spotted a man carrying what appeared to be a crossbow.
Police said the man entered the grounds but not any buildings.
The Queen spent Christmas Day at Windsor Castle and was expected to have lunch with the Prince of Wales and the Duchess of Cornwall, and the Earl and Countess of Wessex.
Charles, Camilla, Edward and Sophie, along with their children Lady Louise and James, Viscount Severn, attended a church service in St George’s Chapel, in the castle grounds, at 10.45am on Christmas morning.