The Hellfire Club once constructed a "Cave of Trophonius" with obscene wall-paintings in which to conduct their revels.
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The house remained in the Austen family until the mid 18th century when Robert Austen (1697–1743), the 4th baronet (Sheriff of Kent in 1724 and MP for New Romney from April 1728 to 1734), died and the estate was eventually purchased (c. 1772) by his brother-in-law Sir Francis Dashwood, a member of the notorious Hellfire Club.
The caves were used as a meeting place for Sir Francis Dashwood's notorious Hellfire Club, whose members included various politically and socially important 18th century figures such as William Hogarth, John Wilkes, Thomas Potter and John Montagu, 4th Earl of Sandwich.
As part of the Marvel NOW! event, Master Pandemonium was recruited by Kade Kilgore to be a teacher at the Hellfire Club's Hellfire Academy, where Master Pandemonium teaches Hell Literature.
Hellfire Club members Sebastian Shaw, Donald Pierce, Harry Leland, and Jason Wyngarde all have names and likenesses based on characters in the episode.
Francis Dashwood, 15th Baron le Despencer (1708–1781), English rake, politician, Chancellor of the Exchequer, founder of the Hellfire Club
Based in Kenosha, Wisconsin, the Electric Hellfire Club was formed in 1991 when Thomas Thorn (aka Buck Ryder), departed the industrial/techno band My Life With the Thrill Kill Kult.