Muhammad
Muhammad's life is traditionally defined into two periods: pre-hijra (emigration) in Mecca (from 570 to 622), and post-hijra in Medina (from 622 until 632). Muhammad is said to have had thirteen wives in total (although two have ambiguous accounts, Rayhana bint Zayd and Maria al-Qibtiyya, as wife or concubine.) Eleven of the thirteen marriages occurred after the migration to Medina.
Al-Ma'mun
Al-Ma'mun had one official wife, Umm Isa, a daughter of his uncle al-Hadi (), whom he married when he was eighteen years old. They had two sons, Muhammad al-Asghar, and Abdallah. Al-Ma'mun had also numerous concubines. One of them, Sundus, bore him five sons, among whom al-Abbas, who rose to become a senior military commander at the end of al-Ma'mun's reign and a contender for the throne.