Odpowiedzi na post #6

Don't forget the 4th Crusade where they kicked Byzantines out of their home and established the "Latin Empire" until all that fell apart.

You do know that the Fourth Crusade ended up sacking Constantinople right? Open conflict happened way before the Seventh.

Wasn't there a time when the Byzantines massacred all the Italian businessmen and merchants in the city and even murdered an Italian priest who...