Lady Lily Howard is a visitor to Rennes-le-Chateau during the events of Gabriel Knight 3. She is a former stage actress and socialite. It is strongly suggested that she is in a lesbian relationship with Estelle Stiles, her companion, though this is never said outright.
Though once wealthy, Howard lost her estate years before the events of Gabriel Knight 3. She and Stiles are in Rennes-le-Chateau to find treasure, with the intent to use it to buy back the estate. Howard is an adherent of Dr Wen, a Chinese archeologist who supposedly found artifacts in the area, though little is said about what his actual theories are.