Source note

RIGANSON, called Biffon, also Chanoine, constituted with La Biffe, his mistress, one of the most important couples in his class of society. When a convict he met Jacques Collin, called Vautrin, and in May, 1830, saw him once more at the Conciergerie, at the time of the judical investigation succeeding Esther Gobseck's death. Riganson was short of stature, fat, and with livid skin, and an eye black and sunken. [Scenes from a Courtesan's Life.]