What 3 things does Edward learn in prince and the pauper when traveling among his subjects

Prince Edward learns numerous things when he is dressed as the pauper in Twain's "The Prince and the Pauper." He learns that what he thought was freedom is actually poverty and neglect from his family, he learns of the hardships that his citizens face due to the injustices of certain laws and he learns the filthy conditions of the nation's prisons.