Queen Nicoletta is the daughter of the Italian King and Queen and heir to the throne of Italy. She becomes close friends with America Singer and supports her as the future queen of Illéa. She secretly gave money to the Northern rebels for weapons against the Southern rebels.
America described all the Italian ladies of the royal family who came to the palace for a visit as "statuesque." They were "tall, golden skinned, and absolutely beautiful," and they were "all so good-natured. It is like they carry the sun inside their souls and let it shine out on everything around them."