Simplify the following text for a Grade 8 native English-speaking person.
Original: After a series of misunderstandings and outbreaks of violence , the Crusaders sacked the city in 1204 , and established the so-called Latin Empire and a series of other Crusader states throughout the territories of the Greek Byzantine Empire .
Simplified: After a series of misunderstandings and outbreaks of violence , the city was sacked in 1204 .