17/06/2022 · Belgravia ( / bɛlˈɡreɪviə /) [1] is an affluent district in Central London, [2] covering parts of the areas of both the City of Westminster and the Royal Borough of Kensington and Chelsea . Belgravia was known as the 'Five Fields' during the Tudor Period, and became a dangerous place due to highwaymen and robberies.