WordNet sense 1 (having or showing arrogant superiority to and disdain of those one views as unworthy):

disdainful, haughty, prideful, supercilious, sniffy, swaggering

WordNet sense 2 (feeling self-respect or pleasure in something by which you measure your self-worth; or being a reason for pride):

proud

WordNet sense 3 (of or befitting a lord):

august, grand, August

WordNet sense 4 (of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times):

noble