Era
Vol. 1: A seculo VI usque ad 803
Date
April 20, 579
Place
Regestum

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

Source
The document is inserted in the forged acts of the Synod of Grado (see the edition here and more info on the manuscript sources); the following edition is based on:
B = Venice, Archivio di Stato di Venezia, Pacta e aggregati, Pactorum Liber I, fol. 56v; 15th-century simple copy.
C = Venice, Biblioteca Marciana, ms. Zanetti lat. 400 (= 2028), fol. 40v; 14th-century copy, inserted in Andrea Dandolo’s Chronicle of Venice (the so-called Chronica per extensum descripta of which this is the codex optimus).
Previous Editions
Roberto Cessi (ed.), Documenti relativi alla storia di Venezia anteriori al mille, vol. 1: Secoli V-IX, Testi e documenti di storia e di letteratura latina medioevale 1 (Padua 1940), doc. 6, pp. 9-10.
FIM Edition
Diplomatic edition based on B with with different readings from C reported in the critical apparatus.
Transcription

Pelagius urbis Romęa episcopus Elyęb Aquilegiensi patriarchęc.

Convenit apostolico moderaminid pia religione pollentibus benivola compassione succurreree et poscentiumf animis ing hac re devotione impartireh consensumi. Ex hoc enim, lucri potissimum a Conditore omniumj procul dubio promerebimur, si venerabilia loca, opportunok transmutata tempore, nostro fuerint studio ad meliorem sine dubio statum producta.

Igitur, quia petisti a nobis per missionisl tuę venerandęm fraternitatisn breviao, consentientibusp in eisq suffragraneisr tibi episcopis, quatenus Gradense castrum totius Venetię fieris et Istrię metropolim ad regendam scilicet ecclesiam atque cum Dei timore dispensandam, emissa preceptione, concedere deberemus.

Quapropter vesti compatientes meroris necessitudinit, immo et iamu rabiem furentium perpendentes Longobardorumv, inclinati precibus vestris, per huius precepti seriem suprascriptum castrum Gradense totius Venetię fieri cum omnibus vestrę ecclesię pertinentibus etiamw Istrię metropolim perpetuo confirmamus, statuentes quapropter apostolica autoritate sub interminatione futuri iudicii nulli licere nostrorum sucessorum vel alii cuilibet hęc quę a nobisx decreta sunt pia in quoquam destruere aut convellere quęy potius firma stabilitate inconvulsa manere diffinimusz, atque sub anathematis vinculo perpetuis temporibus observanda.

Quam ob rem hortor te sempera' relevareb' oppressos, semperc' corripere inquietos ut zizaniad' Dominicam non possit suffocare messem.

Gratia domini nostri Iesu Christi et omnise' caritasf' Dei sit semper vobiscum.

Data XII kalendas maiig', imperante Tiberio II Constantino augusto.

Critical apparatus

a) Rome C; -e loco -ę undique C.  b) Helie C.  c) patriarce C.  d) moderamine C.  e) subocurrere C.  f) poscentum C.  g) ab C.  h) impertire C.  i) assensum est C.  jseq. id est Deo addC.  k) oportuno C.  l) inmissionis C.  m) veneramde C.  n) confrater C.  o) breviarum C.  p) conscentientibus C.  q) in eis] om. C.  rsic B; suffraganeis C.  sseq. immo add. C.t) necessitudinis C.  uom. C.  v) Langobardorum C.  w) et C.  xseq. intencione add. C.  yom. C.  z) diffinimus C.  a') supra C.  b'seq. senper add. C.  c'om. C.  d') ex insania C.  e'om. C.  f') karitas C.  g') mai C.

Medieval Recollections
Selected Bibliography
Paul Fridolin Kehr, "Rom und Venedig bis ins 12. Jahrhundert," Quellen und Forschungen aus italienischen Archiven und Bibliotheken 19 (1927): pp. 20-22.
Roberto Cessi, "Nova Aquileia," Atti del Reale Istituto Veneto di Scienze, Lettere ed Arti 88/2 (1928-1929): pp. 543-94.
Editor's Notes

The document is a clear forgery, drawn up in the mid-11th century based on an authentic charter issued by the papal chancery under Pope Pelagius II, most probably a praeceptum de concedendo monasterio according to the formulae (Kehr, "Rom und Venedig," pp. 20-22). The falsified privilege was later inserted into the contaminated (or completely forged) acts of the Synod of Grado (see the edition here).

How to Cite
First citation: Josip Banić (ed.), Fontes Istrie medievalis, vol. 1: A seculo VI usque ad 803, doc. 579_PPG, fontesistrie.eu/579_PPG (last access: date).
Subsequent citations: FIM, 1: doc. 579_PPG.