Early Life and Service
Martin was born in Italy toward the close of the sixth century, by the accounts near Todi in the region of Umbria, though some sources place his origin in Tuscany. He was educated in the doctrine of the Church and entered the clergy of Rome.
His learning and ability led to his appointment as papal apocrisiarius, the representative of the Roman Church at the imperial court in Constantinople, an office he held under Pope Theodore I. This service gave him direct knowledge of the theological disputes then troubling the empire.