His father Babai was the ōstāndār (official in charge of crown property) of Nasibin, his grandfather had held the prefecture of Weh Antiok Khosrow near Ctesiphon.
[4] Mihramgushnasp received his education in Zoroastrian religious rituals and Persian literature, and by the age of seven he learned to recite the Yashts and perform the Barsom.
However they were not executed, and he left for a monastery in Mount Izla, Tur Abdin in 601, where he received his Christian education alongside Babai the Great, one of the most influential theologians of the Church of the East.
The Church of the East delegation was headed by George of Izla while Gabriel of Sinjar, the Shah's physician, led the Miaphysites.
[11] In retaliation, Gabriel brought up George on charges of apostasy from Zoroastrianism, a crime punishable by death in Sasanian law.