Vol. 1: A seculo VI usque ad 803

507_CV

Regestum

King Theodoric orders Anthony, the bishop of Pula, to restitute the rustic possession violently occupied by the bishop's officers to a certain Stephan.

Date
Between 507 and 511 according to Mommsen; between 518 and 526 according to Kandler

533_CV

Regestum

Cassiodorus, as praetorian prefect, remits the collection of tax on wine and corn to the citizens of Concordia, Aquileia and Forum Iulii (Cividale del Friuli) due to a meager harvest; instead, he instructs his tax collector Paul to procure the necessary quantity of wine from Istrians who enjoyed a particularly abundant harvest.

Date
Between 533 and 537 according to Mommsen; between 536 and 537 according to Tanzi; between 535 and 536 according to Ruggini

537_CV1

Regestum

Cassiodorus, as praetorian prefect, informs the provincials of Istria that a part of their due tax will be commuted in kind.

Date
Between 537 and the 1st of August, 538.

537_CV2

Regestum

Cassiodorus, as praetorian prefect, sends Lawrence to Istria to examine the harvests and prepare a report of the yields in order for the taxes to be determined.

Date
Between 537 and 538 according to Mommsen; between 536 and 537 according to Tanzi

537_CV3

Regestum

Cassiodorus, as praetorian prefect, orders the tribunes of the coast to be prepared to transfer the victuals from Istria to Ravenna by sea.

Date
Between 537 and 538.

539_BG

Regestum

In the midst of the war between the Roman Empire under Emperor Justinian I and the Ostrogoths in Italy, the Roman general Belisarius plans the siege of the Ostrogothic capital Ravenna; The Po valley is blocked as Belisarius commands Vitalius, magister militum per Illyricum, to depart with his army from Dalmatia and subject the Ostrogothic towns of regio Venetia; traditionally taken as marking the Byzantine conquest of Ostrogothic Istria and the beginning of the centuries-long rule of the Eastern Roman Empire in Istria (narrative accounts from Procopius of Cesearea's History of the Wars).

Date
539

543_EP

Regestum

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, forged in the first half of the 13th century.

Date
24th of March, 543 (13th Century Forgery)

544_BG

Regestum

Belisarius and Vitalius, the generals of Emperor Justinian I's army, draft new soldiers across Thrace and Illyricum as they prepare for a new assault against the Ostrogoths in Italy; they stop in Pula to regroup before sailing to Ravenna to engage the enemies (narrative accounts from Procopius' History of the Wars).

Date
Circa 544

546_LPR

Regestum

Emperor Justinian I has Pope Vigilius I consecrate Maximian, a deacon from Pula, as the new bishop of Ravenna; once installed as bishop, Maximian embarks on several architectural projects, including the building of the Santa Maria Formosa church in Pula (narrative accounts from the Life of Saint Maximian written by Agnellus of Ravenna in his Book of the Pontiffs of the Church of Ravenna).

Date
4th of October 546 (the ordination of Maximian as the bishop of Ravenna) to 22nd of February 556/7 (the presumed death of Bishop Maximian)

547_MD

Regestum

Maximian, the bishop of Ravenna, endows the monastery of St. Andrew and the church of St. Mary in Pula.

Date
During the episcopate of Maximian, the bishop of Ravenna (4th of October 546-22nd of February 556/7); traditionally, but wrongly, dated to 21st of February 547.
Place

550_BG

Regestum

Emperor Justinian I appoints his cousin Germanus as the commander-in-chief of his army fighting against King Totila in Italy; the promise of a renewed war effort against the Ostrogoths under a famous military commander encourages men across the region to rally under imperial banner as they journey to Istria, awaiting the arrival of Germanus (narrative accounts from Procopius of Cesearea's History of the Wars).

Date
550

554_IPS

Regestum

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).

Date
13th of August, 554

559_PPI

Regestum

Pope Pelagius I writes to patrician John regarding the detrimental consequences of the schism within the Church (the so-called Three Chapters Controversy), especially concerning the recent election of a schismatic patriarch of Aquileia, urging the Byzantine official not to recognize their authority as they had not been canonically elected.

Date
February of 559

559_PPV

Regestum

Pope Pelagius I writes to patrician Valerian, beseeching him to repress the schismatics and support the quest to restore union to the Church.

Date
March of 559

559_PL

Regestum

Pope Pelagius I writes to a patrician John on the detrimental effects of the schism in the Church (the so-called Three Chapters Controversy), singling out Bishop Euphrasius as a particularly depraved schismatic and advising the patrician to repress the schismatics in the province of Aquileia (that is, the region Venetia et Histria).

Date
March of 559

559_PPV1

Regestum

Pope Pelagius I writes to patrician Valerian, urging him to take action against the schismatic bishops in the ecclesiastical provinces of Milan and Aquileia and support the papal quest to bring back unity to the Church.

Date
Between March and the 16th of April, 559

559_PPN

Regestum

Pope Pelagius I writes to patrician Narses, beseeching him to take action against the schismatic bishops, namely the bishop of Fossombrone and the bishops of Liguria, Venetia and Istria.

Date
Between March and mid-April of 559

559_PL1

Regestum

Pope Pelagius I writes to Charles, the magister militum, regarding the Schism of the Three Chapters and the schismatic bishops.

Date
April of 559

560_VF1

Regestum

A poem composed by Venantius Fortunatus to a Vitalis, a bishop of Ravenna, traditionally identified as Maximian of Ravenna, but also as bishop Vitalis of Milan, bishop Vitalis of Altino, or even an eponymous, otherwise undocumented bishop of Pula.

Date
C. 560
Place

560_VF2

Regestum

Venantius Fortunatus composes a poem in celebration of the construction of the church of St. Andrew, built by a Vitalis, the bishop of Ravenna (most probably a laudatory nickname for Bishop Maximian).

Date
Circa 560
Place

568_HL

Regestum

Lombards under King Alboin invade Italy and conquer Friuli; Gisulf I, Alboin's nephew, is made the ruler (duke) of Friuli; Paulinus, the incumbent patriarch of Aquileia, flees from Aquileia due to the invasion and finds shelter in Grado where he hides the treasury of his Church as well (narrative account from Paul the Deacon's History of the Lombards).

Date
Between April of 568 and 569

574_PBA

Regestum

Pope Benedict I officially sanctions the transfer of the episcopal see from Aquileia to Grado; 11th-century forgery included in the Chronicle of Grado.

Date
Between 574 and 578, but in reality an 11th-century forgery

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
20th of April, 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
3rd of November, 579 (purportedly) or sometime between 572 and 577 (more probably)
Place

581_GG

Regestum

Gogo, the majordomo of King Childebert II, writes to Grasulf, the Lombard duke of Friuli, proposing an alliance with the Franks, the Papacy, and the Byzantine Empire against their common foes (presumably the Avars and the Slavs, but possibly even the Lombards).

Date
Between 571 and 581