Narses (c. 478–573) was a Byzantine general, who led the imperial forces in parts of the Gothic Wars in Italy in the 500s.
The Lombard invasion of Venetia in 568 — from “Historia Langobardorum” by Paul the Deacon.
An account of the bubonic plague in Italy — also called the Justinian plague — from “Historia Langobardorum” by Paul the Deacon.
The “Historia Langobardorum” is the oldest chronicle relevant to the history of Venice. It probably dates to the 780s or 790s.
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.