sentences:  At the end of the 6th century, Fiesole was destroyed in the Lombard invasions, and its surviving population fled to Luni.There appears to have been no bishop of Fiesole in 599, when a priest and a deacon of the clergy of Fiesole, who were trying to rebuild the churches, which lay in ruins.They appealed for help to Pope Gregory I, who wrote a letter in May 599 to Bishop Venantius of Luni, asking him to contribute twenty solidi, or more if he has the resources, to the restoration project.