Aio or

Haio (b. # 160;? - Died. At 811) was probably the Duke of Friuli between the death of Eric (799) and the designati on Cadolah of Friuli (817). It is likely that it was preceded by another Hunfrid Duke, who died about 808 Although there is a prin ce in any contemporary or later sources, that the forces he had in the region, we guess that the use of the ducal power during a period when it is not known to another prince. Aio first granted land in the duchy of Friuli [1] from Charlemagne February 2 799