A well-rounded person should be of a noble birth just like the definition of a gentleman. The Courtier says “I wish them that this courtier of ours should be nobly born and of gentle race; . . . for noble birth is like a bright lamp that manifests and makes visible good and evil deeds.( Sayre, The Perfect Courtier, para 4)
A well-rounded person should have a likeable personality, and a true sense of self esteem. The Courtier says “I would have the courtier favored in this regard also, and endowed by nature not only with talent and beauty of person and feature, but with a certain grace and (as we say) air that make him at first sight pleasing and agreeable to all who see