He consented to pay an increased tribute to the Avars and allowed the Persians, who had declared war in 604 under Chosroes II., to overrun the Asiatic provinces and to penetrate to the Bosporus.
The Roman empire kept back the Persians and Parthians, but could not prevent a series of incursions by Avars, Huns, Bulgarians, and later by Mongols and Turks.
The Huns, for instance, and the Avars appeared in the 6th century, and the Mongols in the 13th.
158,550 Avars, 121,375 Darghis, 94,506 Kurins), a race closely akin to the Circassians, intermingled towards the Caspian Sea with Tatars and Georgians.
Of the shorter poems, besides the greeting to Pippin on his return from the campaign against the Avars (796), an epistle to David (Charlemagne) incidentally reveals a delightful picture of the poet living with his children in a house surrounded by pleasant gardens near the emperor's palace.