capture. Alexios IV was probably killed the same day; the insistence by the crusaders that he be restored to the throne may have precipitated his death. When news of the death of Alexios IV reached the crusaders, relations between them and Alexios V deteriorated further. The forcible expulsion of all Latins resident in Constantinople in March seems to have been the tipping point which led the crusaders to begin actively negotiating amongst themselves regarding the partition of the Byzantine Empire. They also began to prepare for their final assault on the city, which took place the following month. The fall of Constantinople, flight and death The defenders of Constantinople held out against a crusader assault on 9 April. The crusaders' second attack three days later, however, proved too strong to repel. Breaking through the walls near the Petria Gate, the crusaders entered the city and looted the Blachernae Palace. Alexios V attempted to rally the people to the defence of the city, but with no success. Alexios V then boarded a fishing boat and fled the city towards Thrace on the night of 12 April 1204, accompanied by Eudokia Angelina and her mother Euphrosyne Doukaina Kamatera. In the Hagia Sophia Constantine Laskaris was acclaimed as emperor, but being unable to persuade the Varangians to continue the fight, in the early hours of 13 April he also fled, leaving Constantinople under crusader control. Alexios V and his companions eventually reached Mosynopolis, which had been occupied by the deposed emperor Alexios III Angelos and his followers. At first they were well received, with Alexios V marrying Eudokia Angelina. Later, however, Alexios III arranged for his new son-in-law to be made captive and blinded, thereby rendering him ineligible for the imperial throne. Having been abandoned by both his supporters and his father-in-law, Alexios V was captured near Mosynopolis, or possibly in Anatolia, by the advancing Latins under Thierry de Loos in November 1204. On his return to Constantinople as a prisoner, Alexios V was tried for treason against Alexios IV. In his trial the blind ex-emperor argued that it was Alexios IV who had committed treason to his country, through his intention to invite the crusaders to enter Constantinople in force. On being condemned, he was executed by novel means: he was thrown to his death from the top of the Column of Theodosius. The new, alien, Latin regime of conquerors in Constantinople