Between 1282 and 1339 at least six provincial councils were celebrated in the Patriarchate of Aquileia. They were preceded by the constitutions of the papal legate, Latino Malabranca. Canons that concerning the state of the local churches were published in four councils and were received by the suffragan bishops. In 1339, a homogeneous conciliar corpus was established, which remained in force until the end of the 16th century. The present paper analyzes the contexts and the protagonists of this synodal activity and highlights the historical reasons that determined the authority and the reception of the single conciliar constitutions.
