Who were among the last prisoners to be held at the Tower of London?

Ronald "Ronnie" Kray (24 October 1933 – 17 March 1995) and Reginald "Reggie" Kray (24 October 1933 – 1 October 2000), identical twin brothers, were the foremost perpetrators of organised crime in the East End of London, England, United Kingdom, from the late 1950s to 1967. With their gang, known as the Firm, the Krays were involved in murder, armed robbery, arson, protection rackets and assaults.

The Krays were called up to do National Service in the British Army in March 1952. In September while absent without leave (AWOL), the twins assaulted a police constable who tried to arrest them. They became among the last prisoners to be held at the Tower of London before being transferred to Shepton Mallet military prison in Somerset for a month to await court-martial.

The Tower of London, officially Her Majesty's Royal Palace and Fortress of the Tower of London, is a historic castle on the north bank of the River Thames in central London. It lies within the London Borough of Tower Hamlets, which is separated from the eastern edge of the square mile of the City of London by the open space known as Tower Hill.

It was founded towards the end of 1066 as part of the Norman Conquest. The White Tower, which gives the entire castle its name, was built by William the Conqueror in 1078 and was a resented symbol of oppression, inflicted upon London by the new ruling elite. The castle was also used as a prison from 1100 until 1952, although that was not its primary purpose.