Dio's full list of titles and honorifics;

The Immortal Shining Empurror Diocletian, Primordial Leviathan of the Mare Cognitum, Treader of Dawn through the Forest of Stars, Dreadnought of Ithaka, White Ward of Dol Guldur, Sacred Son of the Wayfarer Caladan Brood

Which is a bunch of black metal band names cobbled together in a semi-coherent manner. The roommates and I also refer to him as "The Void."