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 (13th-century forgery).
Count Maynard III of Gorizia promulgates an arbitrational sentence in a dispute between Aquileian Patriarch Berthold V and the Commune of Koper regarding the elections of podestàs, the prerogatives of the appointed gastalds and the administration of criminal justice, fines above a hundred bezants and the patriarch’s right to emend the local statute.
Granting the petition of the envoys of Koper, Aquileian Patriarch and Istrian Margrave Gregory of Montelongo grants the Commune of Koper the right to elect a Venetian as their podestà for a term of one year.
Having petitioned and received the right to elect their own podestà for a year, the envoys of the Commune of Motovun elect Senisio de Bernardis of Padua as their podestà, and the Patriarch-Margrave Gregory of Montelongo approves the election.
Having petitioned and received the right to elect their own podestà for a year, the envoys of the Commune of Poreč elect Zaninus de Marco [of Koper] as their podestà, and the Patriarch-Margrave Gregory of Montelongo approves the election.
Having petitioned and received the right to elect their own podestà for a year from the Aquileian Patriarch and Istrian Margrave Gregory of Montelongo, the envoys of the Commune of Motovun elect Biaquino of Momjan as their podestà, and Patriarch-Margrave Gregory of Montelongo approves the election.
Asquin the dean and the chapter of Aquileia together with Hartwig of Castellerio the deputy, all acting on behalf of the Patriarchate of Aquileia during the sede vacante period, accord a privilege to the Commune of Buzet as a reward for their loyalty and steadfastness during the past war, exempting them from an annual tax in money that they had customarily paid to the Church of Aquileia.
Raymond della Terra, the patriarch of Aquileia, appoints Manfred Cagapisto and Jacob Porrezionis as his legal representatives with the power of attorney to conclude a new deal with the doge and the Commune of Venice.
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.
At the behest of the Venetian ambassador Pietro Quirino and in front of the incumbent Venetian vicedominus in Aquileia, Pietro Foscari, Raymond della Torre, the patriarch of Aquileia, by way of his representative Guido Inglozio, solemnly swears to uphold the treaty that his envoys concluded with Venice [in 1275].