[name] Algernon is a given name which derives from the Norman-French soubriquet Aux Gernons, meaning `with moustaches`. It is first heard of in reference to William de Percy, 1st Baron Percy, a Knight from Percy-en-Auge, who accompanied William the Conqueror to England in 1066, and ancestor of the Dukes, and Earls of Northumberland, many of... Found on http://en.wikipedia.org/wiki/Algernon_(name)