The March of Fermo may be a direct continuation of the
Duchy of Fermo of the
Lombard era. This was created by King
Liutprand around 727 out of territory he conquered from the
Byzantine Empire. The name of only one duke is recorded, Tasbun, named in an inscription of 769 or 770 at
Falerone. The Duchy of Fermo was distinct from the duchies of
Ancona and
Osimo, probably also created by Liutprand. It survived the
Frankish conquest of 774 and is mentioned in a diploma of
Charlemagne dated 787. It is uncertain when it was downgraded to a march. A letter of Pope
John VIII to the Emperor
Charles the Fat dated 882, in which Duke
Guy II of Spoleto and his son
Guy III, are referred to as margraves (
marchiones) for the first time, may indicate the shift. The March of Camerino, detached from the
Duchy of Spoleto in the 9th century, may be identical to the March of Fermo first attested in the 10th. In the early 840s, the march(es) of Fermo and Camerino were devastated by
Saracen raiders. The March of Fermo is first attested in a diploma of Emperor
Otto II in 983. Writing in the 11th century,
Hugh of Farfa and
Gregory of Catino refer to the March of Fermo in connection with the reign of King
Hugh of Italy (926–947) and the abbacy of
Rimo of Farfa (920–930). The march included the four counties of Fermo,
Camerino,
Ascoli and
Abruzzo. ==Papal involvement==