The death of Theobald of Champagne threw the plann
The death of Theobald of Champagne threw the planning for this event awry, and Enrico Dandolo forced its participants to take the city of Zara to pay off transportation costs, an action for which he was excommunicated. Three different Alexius's were crowned and overthrown during this event which was instigated by Innocent III, and their descendants ruled from Nicaea and Trebizond after this event. Resulting in the crowning of Baldwin of Flanders as Latin Emperor, For 10 points, name this 1204 crusade which saw the Venetians lead crusaders in sacking Constantinople.
The death of Theobald of Champagne threw the planning for this event awry, and Enrico Dandolo forced its participants to take the city of Zara to pay off transportation costs, an action for which he was excommunicated.
Fourth Crusade [accept Fourth after "crusade"]