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.
Aisha
In many Muslim traditions, Aisha is described as Muhammad's most beloved or favored wife after his first wife, Khadija bint Khuwaylid, who died before the migration to Medina took place. There are several hadiths, or stories or sayings of Muhammad, that support this belief. One relates that when a companion asked Muhammad, "who is the person you love most in the world?" he responded, "Aisha." Others relate that Muhammad built Aisha’s apartment so that her door opened directly into the mosque, and that she was the only woman with whom Muhammad received revelations. They bathed in the same water and he prayed while she lay stretched out in front of him.