Some people believe that Fulano, Zutano and Mengano never existed. In contrast, I think so. Precisely because of not wanting to be recognized hid behind these three common nicknames without specifying their names. These three anonymous if they were three real people, should have Spanish as the spelling of their names and words in the dictionary of the Castilian language. If, however, were only three nicknames language not to mention third party insignificant, their number would exceed several thousands in each community and in every age. I could not say whether they were related or are the same as the Cayo, Tizio and Sempronius the Italic world, though probably not related to the famous Anglo-Saxon John Doe, who seems to have partners because no company is mentioned, unless it can argued that in that world there were fewer than in the Hispanic simpletons.

The French, so proud of their cultural rationalism also agreed to take three anonymous, but only one, also named no name, A such that it may have no other attributes than nothing. My scholarly research I may infer, referring only to Spanish, some biographical features of their names. There were kings, nobles or prelates since no historical work are mentioned, and did not appear in any timeline. Presumably would resemble in their way of acting or speaking, for what that birds of a feather flock together. Of the three, John Doe seems to have been the best known or most important. For the moment is the most cited.