His father made him Marshal in 1138, due to the invasion of John II Comnenus, and escaped capture by sheltering in Edessa.
The Byzantine governor of Tarsus, Andronicus Euphorbenus, invited him to a banquet.
[2] Stephen's corpse was found the next day and it was believed Andronicus murdered him.
[2] Thoros avenged his death with a massacre of Greeks within his territories,[2] which would have led to war had not Amalric I of Jerusalem intervened to bring about a peace.
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