emperor's wife and concubines
Archaic term for the collective group of an emperor's consorts, including both the principal wife and concubines. Used in historical contexts.
The emperor's wives and concubines lived deep within the palace.
emperor's female attendant
Archaic term for a female attendant serving the emperor. Distinct from the consort sense; refers to a court lady rather than a wife or concubine.
That female attendant took care of the emperor's personal needs.
The historical derivation is uncertain; the kanji 妃 (princess, consort) and 嬪 (court lady, concubine) are conventionally associated with the meanings.