Duo Castella, commune (Dvigrad / Duecastelli)

Emperor Otto II confirms the jurisdictions of the bishops of Poreč and grants them immunities.

A public placitum held in front of Istrian Count Werihen whereby the dispute between the Bishopric of Poreč, represented by Bishop Andrew, and a Bertha, a widow of a Cadoloh, regarding the latter's fiscal obligations towards the Church of Poreč (herbaticum and glandaticum) is judged in Bertha's favor.

Pope Sergius IV confirms the jurisdictions of the bishops of Poreč over Rovinj, Dvigrad, and Bale that were disputed by the Aquileian patriarch John.

King Henry IV confirms the jurisdictions and immunities of the Bishopric of Poreč.

Aquileian Patriarch and Istrian Margrave Wolfger confirms the temporal jurisdictions that the Church of Poreč enjoys by way of donations issued by previous patriarchs of Aquileia (13^th-century forgery).

Aquileian patriarch [Raymond della Torre] catalogs his supposed rights and prerogatives in Istria to Venetian ambassadors [Marino Dauro and Pietro Tiepolo] – the Iura domini patriarche ac ecclesie Aquilegiensis in tota Istria.

Venice signs a peace treaty with the patriarch of Aquileia, Count Albert I of Gorizia, and the Commune of Trieste, ending their final conflict and restoring amicable relations as defined by their previous pacts; Venice retains the jurisdictions over the subjected communities in Istria with the exception of Muggia, Buje, and Dvigrad; the settlement of the dispute over the jurisdictions in Istria between Venice and the Patriarchate of Aquileia is entrusted to Pope Nicholas IV.

Boniface, the bishop of Poreč, laments to the Holy See, complaining to Pope [Boniface VIII] about various crimes and alienations committed against his Church by the citizens of Poreč, the Venetian podestàs, the counts of Gorizia and his retainers, and the incumbent patriarch of Aquileia [Raymond della Torre], beseeching the pope to initiate court proceedings and promulgate a swift verdict against of all who unlawfully hold possessions and rights belonging to his bishopric (redacted version of doc. 1295_BP1).

The catalogue of rights that the Patriarchate of Aquileia enjoys in the Margraviate of Istria.

The Commune of Dvigrad invites Hugh VIII of Duino and his lord, Duke Leopold of Habsburg, the captain and the lord of the neighboring County of Pazin, to become the guards (Lat. advocati) of the Commune and defend them against their enemies in return for their obedience and a yearly tribute of twelve Venetian marks.

The Venetian Senate deliberates on the matter of the four recently annexed communinites in Istria and their unhappiness with the current regimen; the first proposal (P. 1), to modify the existing jurisdictional framework is rejected; the second proposal (P. 2) is accepted, changing absolutely nothing, but only advising the rectors of Koper to delegate literate and suitable persons to these posts.

The Venetian Great Council creates a number of new administrative posts that are henceforth to be filled by the Venetian noblemen, among them the rector of Medulin, the podestà of Oprtalj, and the podestà of Dvigrad.

The Council of Ten confirms the old privilege of the Commune of Koper and the original pact with Dvigrad by which the nobles of Koper elect among themselves the regularly rotating podestà of Dvigrad.