On 17 July 1704 he married Mary Fisher, the only child of Edward Fisher, merchant of Mitcham, and of his wife Ellen Norton, daughter of Richard Norton[1] Dering was elected at the top of the poll as Tory MP for Kent at the 1705 English general election.
In the following year, he was arrested at a tavern near the Royal Exchange together with three political colleagues who would later become members of the hard-drinking Tory club, the Band of Brothers.
Their companions broke up the fight, but Thornhill afterwards sent Dering a note challenging him to a duel at Tothill Fields in Westminster on the morning of 9 May.
[4] The incident is recorded by Jonathan Swift in his Journal to Stella[5] and was alluded to by Richard Steele in The Spectator.
[6] Thornhill was murdered on Turnham Green on 20 August the same year, by two men who allegedly invoked Dering's name as they killed him.