Chislehurst its earlier format corresponded to the letters IMP (for "imperial"). The Chislehurst civil parish formed an urban district of Kent from 1894 to 1934. In 1934 it became part of the Chislehurst and Sidcup Urban District, which was split in 1965 between the London boroughs of Bromley and Bexley. The Walsingham family, including Christopher Marlowe's patron, Sir Thomas Walsingham and Queen Elizabeth I's spymaster, Francis Walsingham, had a home in Scadbury Park, now a nature reserve in which the ruins of the house can still be seen. A water tower used to straddle the road from Chislehurst to Bromley until
John Florio a friend of Giordano Bruno, while he worked as tutor and spy (for Elizabeth's spymaster, Sir Francis Walsingham) in the home of the French Ambassador. Frances Yates relates the story of a lively dinner party at Whitehall Palace at which Florio translated to the assembled company, which included Sir Philip Sidney and Oxford professors, Bruno's theories about the possibility of life on other planets. John Florio resided for a time at Oxford, and was appointed, about 1576, as tutor to the son of Richard Barnes, Bishop of Durham, then studying at Magdalen College. In 1578 Florio published a work entitled