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Events on Tuesday 15 September 668 2
630 – 668Constans II (630-668)Died 15 September 668, aged 37Constans II was Byzantine emperor from 641 to 668, overseeing the empire's defense against Arab invasions and relocating his court to Syracuse in Sicily. He was assassinated in his bath by a chamberlain, reportedly at the instigation of court rivals angered by his plans to move the imperial capital west. His death triggered a brief usurpation by the general Mezezius before his son Constantine IV secured the throne.
668Constantine IV becomes Byzantine EmperorSucceeds his assassinated father Constans IIConstantine IV was proclaimed senior Byzantine emperor following the assassination of his father Constans II in Syracuse. He initially shared nominal rule with his younger brothers Heraclius and Tiberius. His reign would later be defined by repelling the first Arab siege of Constantinople and confronting the newly arrived Bulgars on the Danube.