Black Ajax is a historical novel by George MacDonald Fraser based on the career of Tom Molineaux. It is set during the Regency era. The father of Harry Flashman appears as a major character although the book is not part of the official Flashman series.

As in those novels, several real life characters are depicted including: Tom Molineaux Bill Richmond Tom Cribb George IV Beau Brummel Pierce Egan Harriette Wilson Henry Somerset, 7th Duke of Beaufort

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