Just to add further information, sack of Constantinople was done by excommunicated Crusaders. Before Crusaders got excommunicated, they tried to get to Holy Land but Venice offered them ships in exchange for attacking their rebels. Pope excommunicated Crusaders for attacking fellow Christians (Catholics at that). They remained without any goal so Byzantine heir hired them. Ex-Crusaders helped Byzantine heir take throne for himself and he rewarded them with high positions in court, but as he was overthrown people tried to expel Ex-Crusaders. Those rebelled and sacked the city in the process. Pope was not very happy about it and told them this would impair unity with Greeks even further.
I don’t think this should be called Crusade by far, neither was Catholic Church accountable for it in any way. The fact we are blamed for it is highly unreasonable, but as Jesus said “turn the other cheek”. We apologized for something we did not do.
Massacre of Latins on the other hand… while Orthodox Church as itself is probably not accountable for it either, Orthodox Church never excommunicated anyone for it afaik. There was never formal proclamation that it was wrong nor anything else.
AND
We (Catholics) constantly hear from one side only. The Orthodox side
The following article explains some further history
"… the Orthodox did the same sort of things; in fact, one might say they were a major precipitating cause of 1204. This is not to say that the sad events of 1204 were excusable in
any way, shape or form . . . but there are causes for things as well. The sack of 1204 was abominable; unspeakably hideous and evil.
Some Orthodox who object to the above presentation need to distinguish between “minimizing” and “explaining the background of.” They are different things. I would
never contend that these events didn’t have an enormously negative effect on the Eastern Christian consciousness. To do so would be sheer stupidity. Many Orthodox, on the other hand, seem to think their side has never or rarely committed any atrocities against western Christians, which is patently false. Catholic-bashing is very fashionable: secularists, Protestants, and Orthodox alike indulge in it with impunity. I think it’s time that “the other side” (ours) was heard for a change … I refuse to view the horrible event of 1204 in isolation, because that is the truly biased and unbalanced (even bordering on infantile) method of reading history, and mitigates against learning from its lessons. It is a fundamentally liberal mindset which never looks back at history to learn (and speculate) why things happened the way they did – why we are in the boat we are in
now . The fact remains that 1204 was
not sanctioned from the top, whereas Eastern massacres and treachery in 1171, 1182, and 1188
were… "
For context
Excerpt From:
HERE