And these are interesting because the crusaders, with the help of Venetian traders, they actually engage with the claimant to the throne of the Byzantine Empire with the hope that if they can help them come back to the throne, that they can provide them the necessary resources in order to continue on with the Crusades. Well, they are able to put the claimant on the throne, but then an uprising takes that claimant down from the throne, and so the crusaders don't get their payment. But they want that payment badly. And so they decide to take Constantinople themselves. And as we mentioned in other videos, this is really the dagger in the heart between the relationship between the East and the West. We already talked about the Great Schism of 1054, but now you have the West, who are followers of the Latin Church, which eventually gets known as the Roman Catholic Church. They are sacking Constantinople, the capital of the Byzantine, or the Eastern Roman Empire, the most important city in Eastern Christendom.