῾Ηγεμόνι Σεβαστείας.  The Ben. Ed. think that here and in Letter lxiii. ἡγευών means not governor but Head of the Senate.  cf. Cod. Theod. xii., i. 127, 171, 189.  So in Letter lxxxvi.  The “præpositus pagorum” is styled ἡγεμών.