Who were the wives of Manasseh and Ephraim? What were their backgrounds? Who were their parents? Did they have concubines? If so who were they?
I Chronicles 7:14 mentions that Menasheh had an Aramean concubine:
The sons of Manasseh: Asriel, whom his wife bore--his concubine the Aramitess bore Machir the father of Gilead; (Mechon-Mamre translation)