This agreement was sealed with the engagement of Leo's daughter Anna to Artabasdos, and the marriage took place after Leo III ascended the throne in March 717.

Artabasdos was awarded the rank of kouropalates ("master of the palace") and became commander (count, komes) of the Opsikion Theme, while retaining control of his original command. In June 741, after the accession of Leo's son Constantine V