Complex sentence: Josephus claims that 1,100,000 people were killed during the siege, of which a majority were Jewish, and that 97,000 were captured and enslaved, including Simon Bar Giora and John of Gischala.
Split into simpler sentences: Josephus claims that 1,100,000 people were killed during the siege, of which a majority were Jewish. Josephus, "The Wars of the Jews" 97,000 were captured and enslaved, including Simon Bar Giora and John of Gischala.