Enrico Dandolo

Tomorrow will be 800 years after the death of Enrico Dandolo, one ot the greatest dogi (dukes) that Venice has seen.
Enrico Dandolo, old (in his nineties) and blind, led the Fourth Crusade to Zara and then Costantinopoli, to serve the ambitions of Venice.Interesting website
Dandolo, the 39th Doge, never came back from Costantinopoli, where he died.
But the rewards for Venice from the Fourth Crusade (that never reached its target to reach the Holy Land) were so large that made Venice the first Mediterranean power.