Maria the Copt (Mariyah Al-Qibtiyyah)
Mariya Al-Qibtiya was one of the concubines/sex slaves of the prophet Muhammad. According to the sira she was sent to Muhammad as a gift from the Christians of Egypt. According to the hadith and the sirah her beauty incited the jealousy of Muhammad's wives, in particular Hafsa and Aisha. The jealousy they had of her and Muhammad's response was actually the cause of the "revelation" of some Qur'an verses according to the tradition. Although she bore the prophet a son who later died, the prophet never married her.
Life Before Muhammad
Not much is known of Mariyah's life before she was gifted to the prophet as a sex slave. According to the traditional sources, she had a sister.