Princeliness :: Princeliness (n.) The quality of being princely; the state, manner, or dignity of a prince..
Princely :: Princely (a.) Of or relating to a prince; regal; royal; of highest rank or authority; as, princely birth, character, fortune, etc..
Princely :: Princely (a.) Suitable for, or becoming to, a prince; grand; august; munificent; magnificent; as, princely virtues; a princely fortune..