Germanus of Auxerre (Welsh: Garmon Sant) (c. 378 – c. 448) was a bishop of Auxerre in Late Antique Gaul. He is best remembered for his journey to combat Pelagianism in Britain in or around 429 AD, and the records of this visit provide valuable information on the state of post-Roman British society. He also played an important part in the invention and promotion of the Cult of Saint Alban, who was unknown before the saint revealed himself to Germanus in a dream or holy vision. Germanus is venerated as a saint in both the Roman Catholic and Orthodox churches, which commemorate him on July 31.
The principal source for the events of his life is the Vita Germani, a hagiography written by Constantius of Lyon around 480, and the Passio Albani, which may possibly have been written or commissioned by Germanus. Constantius was a friend of Bishop Lupus of Troyes, who accompanied Germanus to Britain, which provided him with a link to Germanus.
Germanus was the son of Rusticus and Germanilla, and his family was one of the noblest in Gaul in the latter portion of the fourth century. He received the very best education provided by the distinguished schools of Arles and Lyons, and then went to Rome, where he studied eloquence and civil law. He practised there before the tribunal of the prefect for some years with great success. His high birth and brilliant talents brought him into contact with the court, and he married Eustachia, a lady highly esteemed in imperial circles. The emperor sent him back to Gaul, appointing him one of the six dukes, entrusted with the government of the Gallic provinces. He resided at Auxerre.
Auxerre (French pronunciation: [oˈsɛʁ]) is the capital of the Yonne department and the fourth-largest city in Burgundy. Auxerre's population today is about 39,000; the metropolitan area comprises roughly 92,000 inhabitants. Residents of Auxerre are referred to as Auxerrois.
Auxerre is a commercial and industrial centre, with industries including food production, woodworking and batteries. It is also noted for its production of Burgundy wine, including world-famous Chablis. In 1995 Auxerre was named "Town of Art and History".
Auxerre was a flourishing Gallo-Roman centre, then called Autissiodorum, through which passed one of the main roads of the area, the Via Agrippa (1st century AD) which crossed the Yonne River (Gallo-Roman Icauna) here. In the third century it became the seat of a bishop and a provincial capital of the Roman Empire. In the 5th century it received a Cathedral. In the late 11th-early 12th century the existing communities were included inside a new line of walls built by the feudal Counts of Auxerre.