Odalisque
An odalisque (Turkish: Odalık) was a virgin female slave in an Ottoman seraglio. She was an assistant or apprentice to the concubines and wives, and she might rise in status to become one of them. Most odalisques were part of the harem, that is, the household, of the sultan.
During the 19th century, odalisques became common fantasy figures in the artistic movement known as Orientalism, being featured in many erotic paintings from that era.
Example – La Grande Odalisque by Jean Auguste Dominique Ingres, painted 1814:

[...] pictures no less real. Love them too much, and you’re no better than the racist Victorians; reducing complex cultures to one-dimensional caricatures. Refuse to love them, and not only do you ignore some terrific art, but a major part of history, [...]