(literary) I, your servant (self-appellation of a lower-rank female); (archaic) male and female slaves; subjects (of a ruler)

concubine

wives and concubines (of a polygamous man); harem

maids and concubines

concubine

concubine

favored concubine

to take a concubine

(idiom) to have many wives and concubines; to have a harem

to have many wives and concubines; to have a harem

favor the concubine and do away with the wife (idiom); spoil one's mistress and neglect one's wife