Mayfair family is a line of powerful witches which story is told in the trilogy, although they also appear in some crossover with The Vampire Chronicles. The Mayfair family originated in Donnelaith, Scotland, and over the centuries has been enriched making America their new home. The wealth of the family is in part due to the agreement entered into by Suzanne Mayfair with the demon Lasher, a disembodied spirit who offered his services to the family in exchange for a monstrous payment. Following the conclusion of this alliance, the family has ever suffered economic hardship, but rather it has expanded beyond measure with countless cousins and distant relatives.