Muhammad's wives
Muhammad was monogamous for 25 years. After his first wife Khadija bint Khuwaylid died, he proceeded to marry the wives listed below, and most of them were widows. Muhammad's life is traditionally delineated as two epochs: pre-hijra (emigration) in Mecca, a city in western Arabia, from the year 570 to 622, and post-hijra in Medina, from 622 until his death in 632. All but two of his marriages were contracted after the Hijra (migration to Medina). Of Muhammad's thirteen wives, at least two, Rayhana bint Zayd and Maria al-Qibtiyya, were referred to simply as concubines; however, there is debate among Muslims as to whether these two officially became his wives. Of his thirteen wives, only two bore him children, a fact which has been described as "curious" by Cornell University Professor of Near Eastern Studies David S. Powers.
Sayyidat Nisa al-Alamin
Sunni Islam considers Fatimah (Muhammad's daughter and Ali's wife) as Sayyidat Nisa al-Alamin;, although there are also some other narrations from Sunni sources which name four women as the greatest women of the universes, namely Khadijah, Fatimah, Maryam, and Asiyah (Pharaoh's wife).