impregnable, which it was, Heraclius was not distracted and in 627-628 devastated Persia and defeated a Persian army at Nineveh late in 627, which precipitated the overthrow of Shâh Khusro II by his own son (628 who sued for peace. The coinage is debased for the first time since Constantine. Indeed, the Asen brothers, founders of the dynasty, were themselves Vlachs,.e. His association with the people was marked by affability and his intercourse with the senate by dignity, so that he was loved by all and dreaded by none save the enemy. But here Kaldellis is implictly asserting that Greek names are "foreign names" in relation to Latin, which would seem to indicate a desire to assert the very kind of "sharp break between Rome and Byzantium" that Treadgold identifies.