Encyclopedia Britannica, Treatise on @ Early Frankish Period page 454 of Macropedia

(Ref: Early Frankish Period page 454 of Macropedia) This citation is considered to be direct and primary evidence used, or by dominance of the evidence.
Encyclopedia Britannica, Treatise on. 

• References (2)
  • Parent Source: Encyclopedia Britannica, Treatise on
  • Individual: Harlevin (Herlouin) Viscomte de Conteville