Lords Commissioners of the Treasury concomitant, so much so that the Prime Minister's official residence, 10 Downing Street, is in fact the official residence of the First Lord of the Treasury, which title is named on the letter box. Salisbury, as a marquess of vast independent wealth, had no use of an official residence, instead living in his grander town house at 20 Arlington Street in St James's, and could instead bestow it as a perquisite to other ministers, along with the First Lordship itself. Other positions have been linked to the Prime Ministership as well. Continuously since 1968, when the position was created by
Lord-Lieutenant of Greater London Lord-Lieutenant of Greater London The Lord-Lieutenant of Greater London is Her Majesty's representative in Greater London, comprising the 32 London boroughs. Each Lord-Lieutenant is assisted in, largely ceremonial, duties by Deputy Lieutenants whom he appoints; the Lieutenancy Office is based at Whitehall, London SW1. Created under the Administration of Justice Act (1964), this office merged those of Lord-Lieutenant of the County of London ("cr." 1889) and the ancient Lord-Lieutenancy of Middlesex. From 1965, the following have served as HM Lord-Lieutenant of Greater London : The ceremonial county of Greater London does not include the City of London, which has its