Not to nitpick or anything, but a Marquis is greater than a Count, Viscount or Baron. A Grand Duke and Archduke are equivalent, and that a Noble Prince would be below a Duke, while a Prince of the Blood (which would include Archdukes and Grand Dukes) would be equivalent of the King. A Marshal is a court honorific, granted to either military commanders, commanders of the Household Guard, Master of Weapons or in rare instances ecclesiastic ministers who mustered troops and had rendered service to the throne as provincial governors(see: the Cardinal, Duc de Richelieu and Charles d'Amboise). - Oberst 19:20, 5 January 2008 (MST)