Input (grade 13): Archduke (in German Erzherzog) is a title distinct from Grand Duke (in German Großherzog), used in some other German royal houses and still in sovereign Luxembourg.
Output (grade 12): Archduke (Erzherzog) is a title distinct from Grand Duke (Großherzog or Großfürst) that is used in some other German royal houses and still in sovereign Luxemburg.