Only one Greek author, Herodotus, alludes to the pre-historic Cappadocian power and only at the latest moment of its long decline.

He set himself to Hellenize or Catholicize Armenian Christianity, and in furtherance of this aim set up a hierarchy officially dependent on the Cappadocian.

His crown was transferred to Constantine Ducas, another Cappadocian noble, who was supposed to be second only to Isaac in competence and popularity.