Accounts state that the successful fall of Constantinople to the Turks in 1453 was attributed to the pieces constructed for the Ottoman Sultan by a mysterious figure named Orban or Urban, who was supposedly a migrant from Hungary — other sources however dispute this fact and claim that he may have been ethnically German or Vlach, given that he came from an area in the Hungarian kingdom where the Vlach people where a majority. What is certain, however, is that by the mid-15th century rulers in Asia and Europe were beginning to recognise the value of firearms as being more than just affecting enemy morale, and the slew of super-sized gun barrels that can be found all over Europe today hints at the proliferation of these weapons towards the end of the Mediaeval Era.