MaksP

‘These baptised Croats will not fight foreign countries outside the borders of their own; for they received a kind of oracular response and injunction from the pope of Rome who in time of Heraclius, emperor of the Romans, sent priests and baptised them. For after their baptism the Croats made a covenant, confirmed with their own hands and by oaths sure and binding in the name of St. Peter the apostle, that never would they go upon a foreign country and make war on it, but rather live at peace with all who were willing to do so; and they received from the same pope of Rome a benediction to this effect, that if any other foreigners should come against the country of the same Croats and bring war upon it, then might God fight for the Croats and protect them, and Peter the disciple of Christ give them victories.’ - Roman Emperor Constantine VII, 10th century