Head of the Castalia and one of the most powerful spellcasters in the Empire. Also a Prince-Imperial, as a younger son of Emperor Adrius Blessing, although he prefers not to use that title in daily life. Participated in the Quicksilver War. A widower with several grown children, he fell in love with Mataline prior to her disappearance. Professor Blessing is a kindly man in his late sixties who helped the 'heroes' when Kalman and Pavo disappeared.