Complex sentence: There was also a rebellion by the Kurds and the Turks during this time, and when their leader Nasir ad-Daula was defeated, the remains of his army invaded and pillaged the Monastery of St. Anthony as well as the nearby Monastery of St. Paul.
Split into simpler sentences: There was also a rebellion by the Kurds and the Turks during this time. When their leader Nasir ad-Daula was defeated, the remains of his army invaded and pillaged the Monastery of St. Anthony as well as the nearby Monastery of St. Paul.