The first pact between the Venetian neighbors in the Kingdom of Italy, represented by Emperor Lothar I, and the Duchy of Venice, represented by Doge Pietro Tradonico, sanctioning mutual aid in campaigns against the Slavs, defining the rights over the use of land and numerous aspects related to trade as well as the modalities of justice administration.
Venice, represented by Doge Orso I Participazio, and the Patriarchate of Aquileia, represented by Patriarch Walpert, sign a treaty according to which the Venetian Doge agrees not to block the Aquileian port Pylum, but only under the condition that the patriarch stops with all the hostilities directed against the Church of Grado and exempts the Venetians from all the tolls on his territories, according to the old customs.
Due to fair treatment and continuous protection, the city of Koper, represented by a locopositus, scabini, the protector of the people (advocatus totius populi) and many others, freely promise an annual gift of one hundred amphorae of wine to the Venetian Doge Pietro II Candiano, to be paid every year within ten days of the harvest, guarantee protection to all Venetians in their city, and prompt debt recovery.
Following a dispute between the Venetians and Istrians, one that resulted in the embargo on all trading between Istria and Venice, Margrave Winther, together with the people and the bishops of Istria, promise to cease all hostilities towards the Venetians, not to usurp or occupy the properties of the Patriarchate of Grado or Venetian bishoprics in the region, to regularly take cognizance of and adjudicate the complaints lodged by the Venetians against defaulting debtors from Istria, to abolish all the newly instituted duties and only charge the customary fees of a docking tax and a market fee, and to promptly inform the Venetians in case the king of Italy plans any offensive against them so that they could safely repatriate.
Thanks to the mediation of Marino, the patriarch of Grado, Lupus II, the patriarch of Aquileia, manages to reach a peace accord with Venice, represented by Doge Pietro III Candiano, but only under the condition that all the hostilities directed against Grado immediately stop and that the patriarch promises to inform Venice of any hostile plans directed against it.
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.
Henry, the incumbent patriarch of Aquileia, pledges his oath of fealty to Pope Gregory VII.
The people of Koper and Izola swear an oath of fealty to the doge and the Commune of Venice, promising to arm one galley whenever Venice would embark on a military campaign with fifteen or more galleys, military aid for any Venetian military endeavor in the Adriatic, in the zone between Dubrovnik, Venice, and Ancona, guaranteeing the safety of all the Venetians in their city, and promising to observe the same ducal laws on grain trade as Venetians.
The people of the Commune of Pula swear fealty to Doge Pietro Polani and to the Commune of Venice, promising military aid in the form of arming one galley per every fifteen Venetian galleys during Venetian military campaigns, to support the Venetian military efforts in the Adriatic, in the zone between Dubrovnik, Venice, and Ancona, and to defend Venice if they see hostile ships approaching their city, exempting the Venetians from all the dues and tolls in their city except the harbor tax (portaticus), guaranteeing safety and judicial autonomy in disputes between Venetians and the citizens of Pula, gifting the doge and the Commune of Venice with a house by the city’s gates, and agreeing to swear the same promise of fealty to every new doge upon his consecration; the doge and the Commune of Venice agree to defend the Commune of Pula against their enemies and to treat the citizens of Pula as their own citizens in Venice.
Five Istrian communities – Pula, Rovinj, Poreč, Novigrad and Umag – pledge their fealty to the doge of Venice and his successors, promising military support, a variety of symbolic tributes to St. Mark, the patron saint of Venice, and to the doges, guaranteeing the safety of all the Venetians in their jurisdictions and abolishing all the dues for Venetian traders.
The people and the clergy of Pula agree to a final settlement with Venice whereby they fully acknowledge their fault for the military actions directed against them and renounce all their claims for further recompense and restitutions.
The incumbent patriarchs of Grado and Aquileia, Enrico Dandolo and Ulrich of Treffen respectively, solemnly end the centuries-old conflict between the two churches regarding the metropolitan jurisdictions over the Istrian bishoprics: the patriarch of Grado renounces the metropolitan pretensions of his church, the treasury that Patriarch Poppo took from Grado, and the possessions in Marsano, Aquileia, Zèmole and Marano Lagunare, but receives the spiritual jurisdiction over the parishes Latisana and San Fior, together with the quarter of the tithes and the annual income of up to seventy pounds of Veronese coins.
Venetian Doge Enrico Dandolo accepts the demands of Aquileian Patriarch Peregrine II and agrees to offer help – mainly political and diplomatic, but also, if need be, military – against the Commune of Treviso, but asks for a number of concessions in return, all of which are granted by the patriarch with the sole exception of military aid.
In the name of Patriarch Wolfger of Aquileia, Henry of Gemona swears to Marco Barozzi, the envoy of Venetian Doge Pietro Zani, to uphold the treaties concluded between the Patriarchate and Venice, namely to ensure the safety of Venetian merchants throughout the patriarch’s secular dominion, to guarantee the reimbursement to any Venetian robbed within these territories, and to promptly announce to the Venetians if the Empire is planning any hostilities directed against them.
Berthold V of Andechs, patriarch of Aquileia, promises to the envoys of Doge Pietro Ziani and the Commune of Venice the security of Venetians within the boundaries of his temporal dominion; assures the recompense in case a Venetian ends up being robbed within his territories; promises to inform the Venetians in case of hostilities planned against them by the Empire; and he commits himself to amend the agreement, if necessary, in accordance with the Venetian doge.
Berthold V of Andechs, patriarch of Aquileia, and Count Maynard II of Gorizia, his advocate, promise to Doge Pietro Ziani and to the Commune of Venice the safety of Venetians living and operating within the confines of the temporal dominion of the Aquileian Church; promise to reimburse any Venetian if they end up robbed in the Patriarchate; to inform the Venetians if they find out that the Empire is planning any hostilities against them; and define the competences of the vicedominus of Aquileia; Venetians are promised exemptions from customs duties throughout the secular dominion of the Aquileian patriarchs and privileged judicial status.
In the name of Berthold V, the patriarch of Aquileia, John of Portis swears to uphold the peace and the treaties signed between the Aquileian patriarchs and the Commune of Venice.
The communes of Venice and Pula sign a new peace treaty and agree on ten articles regulating their future relations.
The envoys of the Aquileian Patriarch Berthold negotiate a new peace treaty with Venice, ending all the conflicts regarding trade, traffic, salt production, dues and the restitution of movable and immovable properties, confirming and reinstating the old pacts signed between the two dominions.
Gregory of Montelongo, patriarch-elect of Aquileia, signs a treaty with Doge Ranieri Zeno and the Commune of Venice, renewing the old pacts signed between his predecessors and the Venetians, guaranteeing the safety of Venetian merchants throughout the Patriarchate, their privileged judicial status, abolishing all the newly instituted fees, and terminating the disputes between the two dominions.
Manfred Cagapisto and Jacob Porrezionis, the official representatives of Aquileian Patriarch Raymond della Torre, conclude a new treaty with Doge Lorenzo Tiepolo and the Commune of Venice, reestablishing the relations as defined in a previous treaty from 1254 signed between Patriarch Gregory of Montelongo and Doge Ranieri Zeno; the representatives of the patriarch also promise to have the count of Gorizia sign the treaty once he settles his differences with the incumbent patriarch, to reimburse to the Venetians all the damages that they had suffered during the period in which the 1254 treaty had not been respected by the patriarchs, and to make sure that all the roads remain free and open to Venetian merchants.
A peace treaty is reached between Aquileian Patriarch Raymond della Torre and his advocate Albert, Count of Gorizia, together with his allies which included the Commune of Koper and Piran.
With the help of Fulcher, the bishop of Concordia, a peace treaty is reached, signed between Venice on the one side and the Patriarchate of Aquileia, the count of Gorizia, and the Commune of Trieste on the other, ending the war that had begun in 1283.
The elected arbitrators and envoys deliberate over the dispute between the Commune of Venice and the Patriarchate of Aquileia regarding the jurisdiction over Istrian communes recognizing Venetian authority, reaching absolutely no conclusion after six sessions.
Records of negotiations between Venice and Patriarch Raymond della Torre regarding jurisdictions in Istria, mediated by Bishop Bernard of Tripoli. A Patriarch Raymond’s reply and counterproposal, a final sketch of the treaty is presented to the parties.