Madame Genevieve Delacroix is the modiste a la mode of Mayfair on Bridgerton. Hemming skirts as deftly as she whispers gossip in her fitting sessions, Delacroix is one of the most in the know women of the ton, which raises suspicion within one inquisitive Bridgerton and piques the desire of another. She’s also dear friends with another working woman in London high society, opera singer Siena.