the 19th century by a column. As the centre of the road junction, Bavay was an obligatory passage between Germania and the naval port of Boulogne-sur-Mer, a bridgehead to Britain. Other routes, seven in total, connected the capital city of the Nervii to the capital cities of neighbouring peoples (Amiens via Arras, Tongeren, Cassel, Trier in the east and Reims in the south). Its position was evidently strategic, but soon these military routes (the future emperor Tiberius transited at Bavay with his armies around 4 AD) were used for commercial purposes. From the Claudian period and especially under the Flavians in the late 1st century the city grew. Large monuments were built: a forum, thermal baths fed by an aqueduct bringing water from a fountain near Floursies located twenty kilometres away, and other buildings with a seemingly official nature adorned the city. Medieval Excavations in the Roman Forum resulted in the discovery of ceramics from the 9th and 10th centuries. The history of the town during this period is unclear and reference is necessary to the larger lines of history of the County of Hainaut. It is likely that the Roman Forum was built as part of a defensive system as some later documents referred to viel castel. In the 12th century the region of Bavay became part of the County of Hainaut and the city was the capital of a Prévôt. In the 13th and 14th centuries the city was fortified with a medieval design for the enclosure and its major levee is still visible today. Modern era In 1433 the county of Hainaut of which Bavay was part became part of the prosperous Burgundian Netherlands. In 1519, the Burgundian Netherlands became part of the Holy Roman Empire of Charles V also in a very prosperous period. In 1555 Charles V divided his empire and gave the Netherlands to which Bavay belonged to his son Philip II, King of Spain. Bavay then remained part of the Spanish Netherlands until 1678 when, after numerous battles of conquest by Louis XIV, a large part of the southern Spanish Netherlands was united with the kingdom of France. The confirmation of the unification of Bavay with the kingdom of France came in 1678 with the (Treaty of Nijmegen). Louvignies-Bavay merged with Bavay in 1946. French Revolution The city was taken by the Austrians who entered the city on 21 July 1792 Heraldry Administration