Grado was the seat of the Patriarch of Aquileia (later Grado) from 606 until 1172 when the patriarch moved to Venice. It was also traditionally the northernmost point of the Dogado.
The Lombard attack on Ravenna, and the Venetian intervention to restore the Exarchate, excerpt from the “Chronica per extensum descripta” (1340s) by Andrea Dandolo.
The Lombard conquest of Ravenna and how the Venetians saved the Exarchate (730s or 740s), excerpt from the “Istoria Veneticorum” by John the Deacon.
The Pactum Lotharii was a treaty between the Duchy of the Venetians and the Holy Roman Empire, or parts thereof, from 840.
In the 730s or early 740s, Hildeprand, nephew of king Liutprand, and Peredeo, duke of Vicenza, managed to take Ravenna, the capital of the Exarchate of Ravenna.
The eventful reign of John VI, bishop of Ravenna (726–744), from the “Liber pontificalis ecclesiae Ravennatis”.
The second doge of Venice, Marcellus, might not have been a Venetian duke, but a Byzantine official.
The lagoon was settled in Antiquity, and in the 600s, there were numerous known towns, and several important cities. Venice, however, was not one of them.
The list of lagoon settlements before the year 1000, from the “Istoria Veneticorum” by John the Deacon.
Following the Lombard invasion and conquest of Venetia, a part of the Venetian population of the mainland cities fled or left for the settlements in the nearby lagoons.
This document is the earliest description of the translation of St Mark to Venice in 827–828, and also of early Venice. This is a translation by René Seindal.
