Roman Catholic Diocese of Passau Lorch, a Roman station and an important stronghold at the junction of the Enns River and the Danube, Christianity found a foothold in the third century, during a period of Roman domination, and a Bishop of Lorch certainly existed in the fourth. During the great migrations, Christianity on the Danube was completely rooted out, and the Celtic and Roman population was annihilated or enslaved. In the region between the Lech River and the Enns, the wandering Bajuvari were converted to Christianity in the seventh century, while the Avari, to the east, remained pagan. The ecclesiastical organization of Bavaria was brought
Enns (town) which up to 6,000 soldiers were stationed, was located on the site of modern Enns. The adjacent settlement (today: "Lorch") received the privileges of a "municipium" in 212 from Emperor Caracalla. At that time about 30,000 people lived here. During the Diocletian Persecution of Christians, a commander of the Roman army, Saint Florian, died as a martyr at "Lauriacum" on 4 May 304, when he was drowned in the Enns river. Only nine years later, the Emperor Constantine I proclaimed religious tolerance with the Edict of Milan. About 370, an Early Christian basilica was built on the remains of a