Euphrasius, the bishop of Poreč, imposes a variety of taxes, including the tithe and the ecclesiastical quartese (the quarter of the tithe) on the citizens of his bishopric. The document aimed at proving the episcopal lordship over the city of Poreč and fixing the tributes due to the Church of Poreč, forged in the first half of the 13th century (before 1222).
Istria as described in the chapters of Cosmography, penned by the anonymous Ravenna Cosmographer (Anonymus Ravennas), including the region's rendition on the famous Peutinger's Map (Tabula Peutingeriana).
Wolfger, the patriarch of Aquileia and margrave of Istria, confirms the boundaries of the territories under the jurisdictions of the bishops of Poreč. A Forgery drawn up by the chancery of Boniface, the bishop of Poreč (1282 - 1305).
Answering the pleas of Aquileian Patriarch Berthold, Emperor Frederick II proclaims and ratifies the verdict of the imperial princes gathered at the Diet of Ravenna, confirming the secular rights and prerogatives of Aquileian patriarchs and forbidding the election of rectors and the exercise of regalian rights to the subjected urban communities, especially to the Istrian cities of Koper, Poreč, and Pula.
In the name of Patriarch-margrave Berthold V of Andechs, John de Riva, the general gastald in Istria, orders a Nicholas de Roço of Poreč and all his supporters to present themselves in front of the patriarch in Friuli and to respond to allegations raised against them by a Marino de Mengoso of Poreč and his supporters.
In the name of Patriarch-margrave Berthold V of Andechs, John de Riva, the general gastald in Istria, orders a Marino de Mengoso of Poreč and all his supporters to present themselves in front of the patriarch in Friuli and to respond to allegations raised against them by a Nicholas de Roço of Poreč of Poreč and his supporters.
Roman King Conrad IV issued a privilege to the Commune of Poreč, granting it the right of free election of their podestas, recognizing the city’s regalian rights and the jurisdictions over its district, allowing the imperial notaries to freely exercise their trade in the city and its district, granting it the right to retain the incomes from tolls levied on commercial goods entering the city by land, and giving it the permission to lawfully and securely trade with the Kingdom of Sicily.
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.