An armiger's a person entitled to use a coat of arms. Such a person's said to be armigerous. Originally an armiger was an Armour-Bearer or Esquire, attendant upon a Knight, but bearing his own unique armorial device. The term "armiger"'s well-defined only within jurisdictions (such as the United Kingdom, Canada, Ireland, and Spain) where heraldry's regulated by the state or heraldic body (such as the College of Arms in England, Wales, and Northern Ireland, the Office of the Chief Herald in Ire… (More on Armiger)