Complex sentence: In September 1260, the Mamluks defeated the Mongols at the Battle of Ain Jalut, shortly after Qutuz was assassinated at Al-Salihiyya, and according to various sources his successor, Baibars was involved in his murder.
Split into simpler sentences: In September 1260, the Mamluks defeated the Mongols at the Battle of Ain Jalut. Shortly after, Qutuz was assassinated at Al-Salihiyya, and according to various sources his successor, Baibars was involved in his murder.