South London is the southern part of London, England, south of the River Thames, consisting of the London Borough of Bexley, Bromley, Croydon, Greenwich, Kingston, Lambeth, Lewisham, Merton, Richmond, Southwark, Sutton and Wandsworth. South London originally emerged from Southwark, first recorded as Suthriganaweorc, meaning ‘fort of the men of Surrey’. From Southwark, London then extended further down into northern Surrey and then western Kent.