[n] a member of the aristocracy
blue blood, patrician
archduke, armiger, baron, baronet, blue blood, Brahman, count, daimio, duke, earl, esquire, gentleman, grand duke, grandee, hidalgo, lace-curtain, laird, landgrave, lord, lordling, magnate, magnifico, margrave, marquis, noble, nobleman, optimate, palsgrav