Duchy of the Pentapolis
The Duchy of the Pentapolis was a Byzantine province, under the Exarchate of Ravenna, located south of Ravenna. The five cities were Rimini, Pesaro, Fano, Senigaglia and Ancona.
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Gregory II — Liber Pontificalis
The Liber Pontificalis for Gregory II (715–731), recounts in great detail the conflicts between the Eastern Roman Empire and the Papacy, with repeated attempts at the life of the pope.
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Chronology of the Lombard invasion
A list of some of the main events of the Lombard conquest of Byzantine Venetia and other parts of Italy.
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Translatio Marci Evangelistae Venetias (English)
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.