Heraclius Constantinus or Flavius Constantinus Augustus.
Constans II (Greek: Κώνστας Β', Kōnstas II Latin: Heraclius Constantinus Augustus or Flavius Constantinus Augustus); 7 November 630 – 15 September 668), also called Constantine the Bearded (Kōnstantinos Pogonatos), was emperor of the Byzantine Empire from 641 to 668. He was the last emperor to serve as consul, in 642.
Constans is a diminutive nickname given to the Emperor, who had been baptized Herakleios and reigned officially as Constantine. The nickname established itself in Byzantine texts and has become standard in modern historiography.
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