Henry George Davis, The Memorials of the Hamlet of Knightsbridge
“ The air of Knightsbridge has always been considered pure and salubrious. Swift brought Harrison to the place for the benefit of pure air; and fifty years since it still maintained the character, for Lady Hester Stanhope sent a faithful footman here for the same relief. Constitution Hill and Montpelier Square derived their names from this fact. The main street of Knightsbridge, from Hyde Park Corner to Kensington, stands on a peculiar but well-defined terrace of the London clay, which separates the gravels of Hyde Park from those more southward, [269] and is rather more than thirty feet deep. ”
