From the Wikipedia page [1] The Old Artillery Ground is an area of land in Spitalfields, London formerly designated one of the Liberties of the Tower of London and Crown Land. Originally the outer precinct of the Priory and Hospital of St Mary Spital, it was converted to an Artillery Ground in 1538, under Henry VIII, for the use of 'The Fraternity or Guild of Artillery of Longbows, Crossbows and Handguns', also known as 'The Fraternity of St George'. This group were later known as the Honourable Artillery Company and used the Ground in conjunction with the Gunners of the Tower.