Fausta (Ancient Greek: Φαύστα, romanized: Faústa; c. 630 – after 668) was the Byzantine empress as the wife of Constans II, when they married in 642.
Fausta was a daughter of Valentinus, a general of Armenian origins, reputedly a descendant of the Arsacids.
Constantine confiscated the fund and used it for the spring military payroll and substantial donations to the army, estimated to about two millions coins.
The extent of his actual jurisdiction is uncertain due to an ongoing war with the Umayyad Caliphate under Umar.
Valentinus took control of the troops in Anatolia and before long started a revolt in the name of Constans II, eldest surviving son of Constantine III.
Valentine led a march to Chalcedon and thus set camp almost directly opposite Constantinople.
Valentinus was offered the title comes excubitorum, commander of the Excubitors, and thus promoted to a position of great power in the Byzantine court.
According to the chronicle of John of Nikiû, Valentinus tried to become co-emperor, his argument being that an adult emperor was needed against the Caliphate.
In 661, Constans II left Constantinople for Syracuse where he set his residence for the rest of his reign.
[2] De Ceremoniis by Constantine VII mentions the grave of Fausta in the Church of the Holy Apostles but not the date of her death.