Meanings of former concubine in English

He had seven younger sons with his second wife, a Ukrainian former concubine, who remained in his favour.

In the days to follow, Valmorain overwhelmed Hortense with attentions, which she interpreted as an express desire to humiliate the former concubine.

Then the merchant's wife thought I was pretty... too pretty... and I was sold to a former concubine of the old Sultan.

Moving in with the temperamental and disillusioned former concubine, she gets sucked into her world of fancy parties, and ambiguous relations with rich, older men.