of theology and spiritual commentary dedicated to the emperor. The sheer volume of these writings and the effusive praise they contain has led many historians to conclude that Gratian was dominated by Ambrose, and it was that dominance that produced Gratian's anti-pagan actions. McLynn asserts that effusive praises were common in everyone's correspondence with the crown. He adds that Gratian's actions were determined by the constraints of the system as much as "by his own initiatives or Ambrose's influence". McLynn asserts that the largest influence on Gratian's policy was the profound change in political circumstances produced by the Battle of Adrianople in 378. Gratian had become involved in fighting the Goths the previous year and had been on his way to the Balkans when his uncle and the "cream of the eastern army" were destroyed at Adrianople. Gratian withdrew to Sirmium and set up his court there. Several rival groups, including the Arians, sought to secure benefits from the government at Sirmium. In an Arian attempt to undermine Ambrose, whom Gratian had not yet met, Gratian was "warned" that Ambrose' faith was suspect. Gratian took steps to investigate by writing to Ambrose and asking him to explain his faith. Ambrose and Gratian first met, after this, in 379 during a visit to Milan. The bishop made a good impression on Gratian and his court, which was pervasively Christian and aristocratic – much like Ambrose himself. The emperor returned to Milan in 380 to find that Ambrose had complied with his request for a statement of his faith – in two volumes – known as De Fide: a statement of orthodoxy and of Ambrose' political theology, as well as a polemic against the Arian heresy – intended for public discussion. The emperor had not asked to be instructed by Ambrose, and in De Fide Ambrose states this clearly. Nor was he asked to refute the Arians. He was asked to justify his own position, but in the end, he did all three. It seems that by 382 Ambrose had replaced Ausonius to become a major influence in Gratian's court. Ambrose had not yet become the "conscience" of kings he would in the later 380s, but he did speak out against reinstating the Altar of Victory. In 382, Gratian was the first to divert public financial subsidies that had previously supported Rome's cults. Before that year, contributions in support of the ancient