When the troops had become acquainted with the emperor's sudden death, they wept for the departed prince as for a father, and made Valentinian emperor in his room. It was he who smote the officer of the temple
Christianity · Church History · Ecclesiastical History
Book IV, Ch. 5 — Of the reign of Valentinianus, and how he associated Valens his brother with him.
Ecclesiastical History · Theodoret of Cyrus