Question

What effects did the fourth crusade have?

Answer 1

Only a relatively small number of the members of the Fourth Crusade finally reached their originally intended goal - the Holy Land. Research indicates that about a tenth of the knights who had taken the cross in Flanders arrived in Palestine to reinforce the remaining Christian states there, plus about half of those from the Île-de-France.[47] During the ensuing half century the unstable Latin Empire siphoned off much of Europe's crusading energy. The legacy of the Fourth Crusade was the deep sense of betrayal felt by the Greek Christians. With the events of 1204, the schism between the Churches in the East and West was not just complete but also solidified

Answer 2

Nevertheless, the Pope accepted the new situation. When the crusaders took some of the piles of money, jewels, and gold that they had captured in the sack of Constantinople back to Rome, Innocent III accepted the stolen items. Furthermore at the Fourth Council of the Lateran the Pope welcomed and recognized to it western (Catholic) prelates from Sees established in the conquered lands—thus recognizing their legitimacy over formerly Orthodox areas.