Complex sentence: An entrepreneur with a background in the hotel industry, in 1984 Hugh Corbett opened, "The Slug and Lettuce" pub in Islington, an area of North London which was becoming increasingly gentrified due to its proximity to the City of London financial district.
Split into simpler sentences: An entrepreneur with a background in the hotel industry, in 1984 Hugh Corbett opened "The Slug and Lettuce" pub in Islington, North London. At the time, Islington was becoming increasingly gentrified due to its proximity to the City of London financial district.