Patriarchatus Gradensis

579_PPG

Regestum

Pope Pelagius II confirms Grado as the new metropolitan see of the ecclesiastical province of Venetia et Histria (11th-century forgery).

Date
April 20, 579
Place

579_SG

Regestum

The acts of the synod of Grado, heavily interpolated by later falsifications, by which the bishops of the ecclesiastical province of Aquileia remain faithful to the Catholic creed as decreed by the Ecumenical Councils of Chalcedon (451), Ephesus (431), Constantinople I (381) and Nicaea (325), refusing to denounce the Three Chapters condemned by the Second Ecumenical Council of Constantinople (552).

Date
November 3, 579 (purportedly) or sometime between 572 and 577 (more probably)
Place

607_HL

Regestum

Following the death of Aquileian patriarch Severus, two new patriarchs are ordained: John, supported by the Lombards and with his seat in Aquileia; and Candidianus, supported by the Romans (Byzantines) with his seat in Grado - the definitive and official split of the patriarchate of Aquileia into two patriarchal sees (narrative account from Paul the Deacon's History of the Lombards).

Date
Circa 607

607_IAA

Regestum

Patriarch John of Aquileia writes to Lombard King Agilulf, complaining that the ill-ordained Candidianus was consecrated as the bishop of Grado by the three Istrian bishops who were violently forced to do so by the “Greeks” (the Romans, that is, the Byzantines), and he beseeches the king not to allow such consecrations to continue following Candidianus' death.

Date
Circa 607

628_HPE

Regestum

Pope Honorius incites all the bishops of the ecclesiastical province Venetia et Histria to profess disobedience to the deposed patriarch Fortunatus of Grado and to accept subdeacon Primogenius, to whom the pope had already sent the pallium, as their new lawful head of the ecclesiastical province; moreover, the pope promises to open diplomatic negotiations with the Lombard king, with whom the deposed Fortunatus sought refuge, with the goal of restoring all the ecclesiastical goods stolen by the said Fortunatus.

Date
February 18, 628
Place

723_GS

Regestum

Pope Gregory II writes to Aquileian patriarch Serenus, reminding him that he received the pallium at the behest of the Lombard king and that he ought to exercise his ecclesiastical rights within the confines of Lombard territories, not interfering with the jurisdictions of the Patriarchate of Grado.

Date
December 1, 723
Place

723_GD

Regestum

Pope Gregory II writes to Donatus, the patriarch of Grado, to Duke Marcellus of Venice, and to the clergy and populace of Venetia et Histria, informing them that he has heard their lamentations regarding the actions of the “Friulian bishop” (the patriarch of Aquileia) and that he has undertaken appropriate measures, ordering the invaders to remain within the confines of their jurisdictions.

Date
Undated, but issued shortly after doc. 723_GS (December 1, 723)
Place

725_GP

Regestum

Pope Gregory II writes to the bishops and populace of Venice and Istria, notifying them that Peter, the former bishop of Pula who usurped the Patriarchate of Grado following the death of Patriarch Donato, has been removed and returned to his See in Pula and that the bishops ought to elect a new head of the church of Grado.

Date
March 1, 725
Place

731_GA

Regestum

Pope Gregory III writes to archbishop Anthony of Grado and to his suffragans, inviting them to the church synod to be held in Rome in the coming November where the issue of icon veneration will be discussed.

Date
731, before November
Place

731_SR

Regestum

Acts of the 731 Synod of Rome whereby the division between the Patriarchate of Grado and the “Bishopric of Friuli” (Patriarchate of Aquileia) is sanctioned, officially confirming Grado as “New Aquileia” and the metropolitan see of the entire ecclesiastical province of Venetia et Histria; 11th-century forgery.

Date
November 1, 731
Place

732_GC

Regestum

Pope Gregory III orders Callistus, the patriarch of Aquileia who has received the pallium from the pope, to restitute Centenara and Musione, the possessions of the monastery of St. Mary in Barbana subject to the Patriarchate of Grado.

Date
After November 731, before 733
Place

741_GA

Regestum

Pope Gregory III writes to Patriarch Anthony of Grado, inviting him and his suffragans to a synod that is to take place in Rome and assuring him of safe passage through Lombard lands.

Date
Circa 741 according to Gundlach; between 739 and 740 according to Cessi
Place

768_IS

Regestum

Patriarch John of Grado writes to Pope Stephan III, lamenting over the Lombard treatment of his subjects in Istria, the newly imposed levies, and the diminishing influence of his metropolitan see, asking the pope to send aid to Istria and reinforce the jurisdiction of his church to the detriment of the “perfidious Lombards”.

Date
Between 768 and 772 according to Gundlach; between 770 and 772 according to Cessi; December of 771 according to Margetić

768_SE

Regestum

Pope Stephan III writes to all the bishops of Istria, reprimanding their insolence for consecrating each other, reminding them that they fall under the metropolitan jurisdiction of the Archbishopric of Grado, and threatening the bishops who fail to heed these warnings with excommunication.

Date
Between 768 and 772 according to Gundlach; between 770 and 772 according to Cessi; January of 772 according to Margetić
Place

768_SI

Regestum

Pope Stephan III writes to Patriarch John of Grado, reassuring him that he has the support of the Apostolic See in his struggles against the Lombards in Istria, reminding him that Istria is under the joint protection of the papacy and the Franks, and informing him that he has dealt with the Istrian bishops who refuse to recognize him as their metropolitan and who uncanonically appoint each other to their episcopal sees.

Date
Between 768 and 772 according to Gundlach; between 770 and 772 according to Cessi; January of 772 according to Margetić
Place

803_CG1

Regestum

Emperor Charlemagne bestows immunities upon the Church of Grado due to the special services and merits of its incumbent Patriarch Fortunatus II.

Date
August 13, 803
Place

803_CG2

Regestum

Emperor Charlemagne exempts the four ships of Fortunatus II, "the patriarch of the Venetians and Istrians," from all the tolls.

Date
Undated; traditionally dated to the 17th of August, 803
Place

804_PR

Regestum

The Plea of Rižana (Placitum Rizianense): The representatives of Istrian towns and cities present their grievances to counts Aio and Cadulus, the envoys of the Roman emperor Charlesmagne, in an official placitum held by the river Rižana in the district of Koper.

Date
804

806_PLK

Regestum

Pope Leo III writes to Emperor Charlemagne regarding the situation of Fortunatus, the patriarch of Grado who had been exiled from his see by the Venetians and "the Greeks". The pope agrees that the Church of Pula should be bestowed upon Patriarch Fortunatus as his new seat.

Date
Between 806 and 810.

814_LPF

Regestum

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.

Date
Between 814 and 821; customarily dated to 815.

826_LPE

Regestum

Emperor Louis the Pious and his son Lothar write to Venerius, the patriarch of Grado, confirming the possessions of his Church, including the Patriarchate's jurisdictions in Istria.

Date
826

826_LV

Regestum

Louis the Pious and his son Lothar instruct Patriarch Venerius of Grado to go to Rome again to settle his dispute with the Patriarch Maxentius of Aquileia before the Pope and their messengers, despite the fact that Maxentius failed to attend the first meeting, causing Venerius to return home without any resolution.

Date
Between 826 and June of 827 (doc. 827_SM)

827_SM

Regestum

The decrees of the Synod of Mantua: the long conflict between the patriarchs of Grado and Aquileia over the metropolitan jurisdiction over Istrian bishoprics is settled in favor of the Aquileian Church.

Date
6th of June, 827
Place

828_VP

Regestum

Patriarch Venerius writes to Pope Gregory IV, imploring his assistance in resolving disputes regarding the metropolitan jurisdiction over Istrian bishoprics, granted by the Synod of Mantua (doc. 827_SM) to his adversary Maxentius, the patriarch of Aquileia, and expressing confidence in the Pope’s judgment and authority.

Date
828