Complex sentence: The legend goes that before long Du Val became a successful highwayman who robbed the passing stagecoaches in the roads to London, especially Holloway between Highgate and Islington, and that unlike most other highwaymen, he distinguished himself with rather gentlemanly behaviour and fashionable clothes.
Split into simpler sentences: The legend goes that before long Du Val became a successful highwayman who robbed the passing stagecoaches in the roads to London, especially Holloway between Highgate and Islington. However, unlike most other highwaymen, he distinguished himself with rather gentlemanly behaviour and fashionable clothes.