Synonyms for Nobility (same or very similar meaning)
WordNet sense 1 (the state of being of noble birth):
noblesseWordNet sense 2 (a privileged class holding hereditary titles):
aristocracyWordNet sense 3 (the quality of elevation of mind and exaltation of character or ideals or conduct):
grandeur, nobleness, magnanimousnessFrom the ODE community, based on WordNetadd/edit