The history of Sebeos provides the main account of his term .
Heraclius the Elder is mentioned again circa 595 as magister militum per Armeniam , probably succeeding John Mystacon .
The history of Sebeos provides the main account of Heraclius the Elder 's term .
Heraclius the Elder is mentioned again circa 595 as magister militum per Armeniam , probably succeeding John Mystacon .