Even before the sack of Constantinople in 1204, the Fourth Crusade already wrecked havoc at Zara in 1202. Upon Venetian request, the Crusaders attacked and besieged Zara, which was a notable trade rival of Venice in the Adriatic. IOTL the city was caught offguard by the sudden arrival and hostile behaviour of the Crusaders. The defenders surrendered after a short siege and the Crusaders plundered the city.
What if the citizens of Zara caught wind of the Venetian-Crusader plans about attacking their city and thus managed to send request for help from the Hungarian king? Believing in the eventual arrival of royal relief forces, the city resists the attackers. The Hungarian king (IOTL King Emeric, but ITTL I plan to have King Béla III live longer, but it's not important for this question) arrives with a strong army (maybe in around early December) and swiftly breaks the siege and routs the Crusaders and Venetians.
Now, what consequences could this have? I assume the crusade would come to an early end in this scenario, ergo Constantinople wouldn't get sacked in 1204 and the Latin Empire wouldn't get established. That alone unleashes a torrent of butterflies. What do you think?
What if the citizens of Zara caught wind of the Venetian-Crusader plans about attacking their city and thus managed to send request for help from the Hungarian king? Believing in the eventual arrival of royal relief forces, the city resists the attackers. The Hungarian king (IOTL King Emeric, but ITTL I plan to have King Béla III live longer, but it's not important for this question) arrives with a strong army (maybe in around early December) and swiftly breaks the siege and routs the Crusaders and Venetians.
Now, what consequences could this have? I assume the crusade would come to an early end in this scenario, ergo Constantinople wouldn't get sacked in 1204 and the Latin Empire wouldn't get established. That alone unleashes a torrent of butterflies. What do you think?