Why was the Fourth Crusade a failure?

Related questions

1. What defines Byzantine art?
2. Which was a major difference between the Roman Empire and the Byzantine Empire?
3. What is the difference between Byzantine and Roman Catholic?
4. Should Byzantine be capitalized?
5. Why is Byzantine art important?
6. What was the Byzantines religion?
7. Which crusade was the most successful?
8. What is Byzantine tradition?
9. What is Byzantium called now?
10. Why does Byzantine mean complicated?

Tags

1. #failure
2. #crusaders
3. #themselves
4. #uprising
5. #buttering
6. #chance
7. #instead
8. #murdered
9. #emperor
10. #massive
11. #relations
12. #byzantium
13. #henceforth
14. #fourth
15. #constantinople
16. #orthodox
17. #catholic
18. #church
19. #alexios
20. #sacked
21. #crusade
22. #deposed