Theophylact Simocatta
Theophylact Simocatta ( Byzantine Greek: Θεοφύλακτος Σιμοκάτ ( τ ) ης "Theophylaktos Simokat ( t ) es"; ) was an early seventh-century Byzantine historiographer , arguably ranking as the last historian of Late Antiquity , writing in the time of Heraclius ( c . 
<triplet> Heraclius <subj> Byzantine <obj> time period