Abubekr Abubekr (d. 634) was the father of Ayesha, and the father-in-law of Mahomet, the first of the caliphs and the founder of the Sunnites. Nearby pages Abuja, Abul-Faraj, Abul-Fazel, Abul-Feda, Abuna, Abuser, Abutilon