Emperor Justinian I issues a pragmatic sanction regulating the administration of the newly conquered Italy (the so-called sanctio pragmatica pro petitione Vigilii or epitome constitutionum Iustiniani de reformanda Italia).
King Pepin the Short promises to Pope Stephan II military aid against the Lombards and the restitution of occupied lands in Italy to the dominion of the Roman Church, the so-called Promissio Carisiaca; 11th-century forgery.
King Charlemagne bestows to the Church of Aquileia the right to canonical election of their patriarchs (that nonetheless requires royal confirmation) and exempts it from public taxes such as the tithes, the grazing fees for livestock sent to graze in Istria, and war taxes (lodgings and provisions for the army) unless the royal military is forced to pass through Friuli and the Treviso region.
King Charlemagne confirms the possessions of the Church of Aquileia and grants it immunities.
Emperor Charlemagne subordinates six episcopal sees to the Church of Aquileia, badly damaged by the incursions of the pagans; late-10th-century forgery.
Emperor Charlemagne bestows immunities upon the Church of Grado due to the special services and merits of its incumbent Patriarch Fortunatus II.
Emperor Charlemagne exempts the four ships of Fortunatus II, "the patriarch of the Venetians and Istrians," from all the tolls.
Emperor Louis the Pious informs Patriarch Fortunatus II of Grado and the faithful of the province of Istria that, at their request, he confirms the free election of the patriarch, bishops, abbots, tribunes and other authorities, that in the event of breach of faith, quarrels and oppression of the poor, the legal judgment awaits them and that violators of the Placitum of Rižana (doc. 804_PR) will be subject to the prescribed penance.
Emperor Lothair I confirms the immunities enjoyed by the Church of Aquileia and its right to canonically elect their patriarchs.
Emperor Lothar I confirms the Venetian possessions in the Empire.
Emperor Louis II assumes under his protection the monastery of St. Michael in Diliano and its abbot Felmo, bestowing upon the monastery immunities and the right of free election of its abbots.
Emperor Louis II confirms the charter of Lothar I to the Patriarchate of Aquileia regarding the dispute with the Patriarchate of Grado that was settled at the Synod of Mantua in 827 (doc. 827_SM): the patriarchs of Aquileia are to enjoy the metropolitan jurisdiction over all the Istrian bishoprics.
Emperor Louis II confirms to St. Michael's monastery in Diliano and abbot Felmo the right to have two lay advocates - the brothers Petronasius and Talasius - to defend their rights.
Emperor Otto I donates Izola in Istria to the Venetian Vitale Candiano.
Emperor Otto II gifts large estates on both sides of the Alps, including the Province of Istria, to his wife Theophanu as a dowry.
Otto II, Emperor of the Holy Roman Empire, donates properties in the March of Carniola to Abraham, the bishop of Freising.
Otto II, Emperor of the Holy Roman Empire, donates properties in the March of Carniola to Abraham, the bishop of Freising.
Emperor Otto II confirms to Patriarch Vitalis of Grado and the bishops subject to him the jurisdictions, immunities, and other rights of their churches.
Emperor Otto II confirms the purchase of Izola, sold by Vitale Candiano to Patriarch Rodoald of Aquileia.
Emperor Otto II confirms the jurisdictions of the bishops of Poreč and grants them immunities.
Emperor Otto III confirms the donation of six bishoprics to the Patriarchate of Aquileia issued by Charlemagne and donates three abbeys to the same Church.
Emperor Otto III donates half of castrum Solkan and half of village Gorizia, together with half of the territories between Rivers Isonzo/Soča, Vipava/Vipacco, and the plateau of Trnovo, to the Church of Aquileia and its incumbent Patriarch John IV.
Emperor Otto III donates half of Solkan and Gorizia, together with half of their respective appurtenances, to Werihen, count of Friuli.
King Henry II donates castle Bled and thirty royal mansi in the March of Carniola to the Bishopric of Bressanone.
King Henry II confirms Otto III’s donations of Pazin and Pićan to the Church of Aquileia and donates various jurisdictions in these two places, terrains to both sides of the river Raša, and the port of Plomin.