Artavasdos, latinized as Artabasdos or Artabasdus (}} or Ἀρτάβασδος, from Armenian: Արտավազդ, Artavazd, Ardavazt), was Byzantine Emperor from June 741 or 742 until November 743. His reign constitutes an usurpation against Constantine V, who'd retained control of several themes in Asia Minor. Rise to power The Armenian Artabasdus was appointed governor (stratēgos of the Armeniac theme by Emp… (More on Artabasdos)