So the Fourth Crusade was now in Constantinople, waiting to get support of men and money from Emperor Alexios IV Angelos per their agreement for putting him on the throne (even though they had to coerce his blind emperor father Isaac II to elevate the son).
Emperor Isaac must have been horrified when he discovered the offer made by his son to the Crusade. Isaac knew very well that Constantinople could not provide the 200,000 silver marks on top of 34,000 marks needed to repay a debt to Venice, or the thousands of soldiers promised to join the Crusade. Much of the financial problem was due to Isaac's brother Alexios III, who had usurped the throne in 1195 and fled to Thrace when the Crusaders attacked the city on 18 July 1203. Alexios III had cemented his power after usurpation with lavish bribes, depleting the treasury. When he fled, he took 1000 pounds of gold with him.
Alexios IV scraped together 100,000 silver marks by confiscating church treasures and property of those he considered enemies (supporters of his uncle), and sacking some Thracian towns. By December, however, it was clear that the Crusade was not going to get the support they were promised. Foolishly, Alexios did not even try to placate them further, stating "I will not do any more than I have done."
Meanwhile, the citizens of Constantinople were increasingly annoyed with the overbearing Westerners, and the young emperor who had brought them there and now was proving to be an incompetent ruler. The locals started acting violently toward the Europeans, attacking and killing many. Isaac compounded the problem by spreading rumors that his son kept company with "depraved men." A contemporary historian, Niketas Choniates (c.1155 - 1217) criticized Alexios' childishness, his lavish lifestyle, and his familiarity with the Western outsiders. Alexios, quite foolishly, tried to teach the Crusaders a lesson (and get the citizens on his side) by setting fire to several ships and aiming them at the Venetian fleet. (The illustration is the Venetian fleet at the shore, from a 15th century miniature.)
By January 1204, the citizens of Constantinople had had enough with the Crusaders and with the rulers that were ineffective at dealing with this threat to the city. They wanted a new emperor, and the senate and priests and populace gathered to find one. Anyone who had been paying attention knew the situation was hopeless: the Crusaders would not go away without Alexios' agreement being satisfied, and there was no way to meet their demands. On 27 January 1204 they elected Nicholas Kanabos, a young noble described by Choniates as "gentle by nature, of keen intelligence, and versed in generalship and war"). He absolutely refused the authority they wanted to give him and fled to the Hagia Sophia for sanctuary.
Knowing that the citizenry en masse wanted them gone, Isaac and Alexios barricaded themselves in the Palace of Blachernae, one of the imperial residences in the northwestern part of the city. (On the Second Crusade, Louis VII and Eleanor of Aquitaine had been hosted there.) They sent a trusted advisor, Alexios Doukas Mourtzouphlos, to go to the Crusaders and get help. Doukas had tried to overthrow Isaac's usurping uncle and been imprisoned for it. When Isaac was restored, Doukas was released and put in charge of the federal finances. Isaac felt Doukas was a man he could trust.
That was a mistake. Tomorrow the Byzantine intrigue goes on, and includes Vikings!
