[1] This unusual lack of publicly recorded information is likely because his dukedom was relatively unremarkable in terms of conquests, expansion, and events of significance — historians of the Republic would have had little interest in "digging up the past" either to glorify or to mar his legacy.
[2] The Morosini had been raised to countship in the late 10th century CE after they, with the support of Holy Roman Emperor Otto II, had vanquished the rival Caloprini family.
[7] An incident involving the abuse of a member of the imperial family by Venetians led to a dangerous conflict, especially as Byzantium had depended on Venice for its naval strength.
The doge extended an olive branch to Pope Eugene III by consenting, in 1152, to the independence of the Church within the territories of the Republic — a move that immediately warranted the repeal of the excommunication and thus simplified Venetian tradings with Catholic countries.
In an attempt to reconcile the factions that had coalesced around the two families among the patricians, Morosini pushed for a mariage d'affaires between Andrea Dandolo, grandson of Enrico, and Primera Polani, niece of the previous doge.