Atto 1 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M VII |
| Ethnicity | Lombard |
| Locations | Spoletium (Umbria) (officeplace); Spoletium (Umbria) |
| Titles | Dux, Spoletium (Umbria) (office) |
| Textual Sources | Paulus Diaconus, Historia Gentis Langobardorum, ed. L. Bethmann and G. Waitz, MGH, Scr. Rer. Lang., pp. 12-187; also in MGH, Scr. Rer. Ger. 48, pp. 49-242 (history) |
Atto 1 was a Lombard
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