Mary Hoffman
These are the books by Mary Hoffman that are reviewed on this site:
Stravaganza: City of Masks
Lucien travels to sixteenth century Belleza and becomes deeply involved in political intrigue.
Stravaganza: City of Stars
Georgia follows Lucien but she finds herself in sixteenth century Remora. There she meets other stravaganti, including Lucien, but her role turns out to be quite different.
Stravaganza: City of Flowers
Sky joins the Brotherhood of Stravaganti and they must all work together to save the city of Giglia, stronghold of the great di Chimici family.