Petrus Orseolo, dux Venetiarum (976-978)

The city of Koper renews its pact of fealty to the doge and the city of Venice, promising the security of all Venetians in their city, the remission of duties of transport and commerce, the payment of the customary tribute of one hundred amphorae of wine every year, judicial autonomy, perpetual peace and alliance even in case of war against other Istrian communities.