Since the Franks and Venetians were excommunicated for the sack of Constantinople, it’s hard for me to see how anyone could think it should be made a feast day. <<
I agree.
I think that actually they were excommunicated en masse for the sack of Vara, and were already under the cloud of excommunication when they laid siege to Constantinople. Pope Innocent III actually
threatened to excommunicate at the time he learned of the plans to attack Zara.
Wiki says the following (Yes, I know Wiki is not a Sterling source, but the author gives citations):
Historian Geoffrey Hindley’s The Crusades: Islam and Christianity in the Struggle for World Supremacy mentions that in 1202, Pope Innocent III “forbade” the Crusaders of Western Christendom from committing any atrocious acts on their Christian neighbours, despite wanting to secure papal authority over Byzantium (Hindley 143, 152). This letter was concealed from the bulk of the army and the attack proceeded. The citizens of Zara made reference to the fact that they were fellow Catholics by hanging banners marked with crosses from their windows and the walls of the city, but nevertheless the city fell after a brief siege. When Innocent III heard of the sack he sent a letter to the crusaders excommunicating them, and ordered them to return to their holy vows and head for Jerusalem. Out of fear that this would dissolve the army the leaders of the crusade decided not to inform the army of this.
There were (I think… I scoped around for confirmation but can’t find any) two bishops present during the seige and they gave assurances to the leadership that everything would be OK. I don’t think they stopped serving Mass (at least the only accounts I have read did not mention it) which would have been obligatory if they were all under the pale of excommunication.
Wiki does also state (my apologies for this, no direct citation in this text):
**The clergy discussed the situation amongst themselves and settled upon the message they wished to spread through the demoralized army. They had to convince the men that the events of 9 April were not God’s judgment on a sinful enterprise: the campaign, they argued, was righteous and with proper belief it would succeed. The concept of God testing the determination of the crusaders through temporary setbacks was a familiar means for the clergy to explain failure in the course of a campaign.
The clergy’s message was designed to reassure and encourage the crusaders. Their argument that the attack on Constantinople was spiritual revolved around two themes. First, the Greeks were traitors and murderers since they had killed their rightful lord, Alexius IV. The churchmen used inflammatory language and claimed that “the Greeks were worse than the Jews”, and they invoked the authority of God and the pope to take action.
Although Innocent III had again demanded that they not attack, the papal letter was suppressed by the clergy, and the crusaders prepared for their own attack, while the Venetians attacked from the sea; Alexius V’s army stayed in the city to fight, along with the imperial bodyguard, the Varangians, but Alexius V himself fled during the night.**
It does so happen that the excommunications were eventually lifted, but precisely when is hard to determine from the written accounts. It is very clear that the Crusaders and the clergy present acted against the wishes of the Pope, and Innocent III accepted it as a
fait accompli some time afterward, desiring to make the best of the situation. The clergy present elected one
Thomas Morosini Patriarch of Constantinople, this was uncanonical for the Latin church at that time, but eventually confirmed by the Pope.
I am sure that a lot of very good wine was spilled in celebration within Constantinople after the success of the siege, and more after the Pope lifted the excommunications, but this Crocker fellow needs to have his head examined for promoting an attitude like that about these horrors, capital crimes and mortal sins. I feel quite sure the Pope himself was very saddened and conflicted over the whole episode, and could perceive how negatively these events would affect the unity and harmony of the church in later times.
I think that this escapade, including the eventual acceptance of it’s results by the Pope (far more than the events of 1054AD between Cardinal Humbert and Patriarch Cerularius) is what sealed the schism and doomed it to a 1000 year fact.