This is a fictional flag of Mexico if a third Mexican Empire was to exist. Historically, the first Mexican Empire had Iturbide I as Emperor of Mexico. The second Mexican Empire had Maximilian I and Charlotte I as Emperors of Mexico. In this fictional flag, elements of the two Mexican empires are incorporated: the diagonal colors of the Trigarante flag which gave Iturbide victory to make Mexico independent from Spain,  and the Maximilian-style crowns widely used during his reign. Three crowns symbolizes the 3 empires.
Own work
Miguel Angel Omaña Rojas