Aiolfi, quite rare is specific to the area that includes the Milanese, Bergamo, Lodigiano, Cremona and Parma areas, rare Ajolfi is more typically Emilian than Parma, deriving from the Longobard name Agilulfus or Aginulfus, from which Aghilolfi and Aginolfi and by contraction Aiolfi. The name derives from two Germanic terms agi (fear) and wolf (wolf), which together would signify a wolf that inspires terror and a terrifying man. The Germanic peoples transfer the respect they feel for their physical strength and for the power represented by knowing how to arouse fear in their names, in the Middle Ages terrible names were a good omen for the son who was supposed to defend the honor of the family. The surname therefore indicates a descent from an Agilulfus or Aghinolfus, a name of which we have an example in a parchment of 1119, preserved in Pavia: "... Trigexima tercia dicitur de Bercela, et est pertice tres et tabule quinque: est ei a mane Aginulfi, upstream Lanfranci Ariprandi ... ".
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