the praetorian praefect, and the son-in-law of the emperor Numerian, murdered the emperor,
as it was said, on the retreat of the army from Persia to the Hellespont. He carefully
concealed the death of Numerian, and issued all the orders in his name, till the soldiers
learnt the truth by breaking into the imperial tent on the Hellespont. They then elected
Diocletian as his successor, Numer. 12-14; Aurel. Vict. de
Caes. 38, 39, Epit. 38;