Chapter XIV.—Of the information given by Maximus the tyrant to Valentinianus.
After a considerable time Maximus 866 was informed of the attacks which were being made upon the loud-voiced herald of the truth, and he sent dispatches to Valentinianus charging him to put a stop to his war against true religion and exhorting him not to abandon his fathers faith. In the event of his advice being disregarded he further threatened war, and confirmed what he wrote by what he did, 867 for he mustered his forces and marched for Milan where Valentinianus was then residing. When the latter heard of his approach he fled into Illyrip. 142 cum. 868 He had learnt by experience what good he had got by following his mothers advice.
After Easter, 387.141:867
The motives here stated seem to have had little to do with the march of Maximus over the Alps. Indeed so far from enthusiasm for Ambrose and the Ambrosian view of the faith being conspicuous in the invader, he had received the bishop at Treves as envoy from Valentinian, had refused to be diverted from his purpose, and had moreover taken offence at the objection of Ambrose to communicate with the bishops who had been concerned in the first capital punishment of a heretic—i.e. Priscillian.142:868
Valentinian and his mother fled to Thessalonica.