Atto (or Hatto) was the

Duke of Spoleto The Duke of Spoleto was the ruler of Spoleto and most of central Italy outside the Papal States during the Early and High Middle Ages (c. 500 – 1300). The first dukes were appointed by the Lombard king, but they were independent in practice. Th ...

from 653 to 663, the successor of Theodelap. Nothing is known of his reign except that he was replaced by Thrasimund,

Count of Capua This is a list of the rulers of the Principality of Capua. Lombard rulers of Capua Gastalds and counts The gastalds (or counts) of Capua were vassals of the princes of Benevento until the early 840s, when Gastald Landulf began to clamour for the ...

References

Paul the Deacon Paul the Deacon ( 720s 13 April in 796, 797, 798, or 799 AD), also known as ''Paulus Diaconus'', ''Warnefridus'', ''Barnefridus'', or ''Winfridus'', and sometimes suffixed ''Cassinensis'' (''i.e.'' "of Monte Cassino"), was a Benedictine monk, s ...

''Historia Langobardorum''
*Hodgkin, Thomas. ''Italy and Her Invaders''. Volume VI. 663 deaths Dukes of Spoleto 7th-century Lombard people 7th-century rulers in Europe Year of birth unknown {{Italy-noble-stub