Gaul was a region of Western Europe first clearly described by the Romans, encompassing present-day France, Belgium, Luxembourg, and parts of Switzerland, the Netherlands, Germany, and Northern Italy. It covered an area of 494,000 km2 (191,000 sq mi). According to Julius Caesar, who took control of the region on behalf of the Roman Republic, Gaul was divided into three parts: Gallia Celtica, Belgica, and Aquitania.
Gallia Lugdunensis was a province of the Roman Empire in what is now the modern country of France, part of the Celtic territory of Gaul formerly known as Celtica. It is named after its capital Lugdunum, possibly Roman Europe's major city west of Italy, and a major imperial mint. Outside Lugdunum was the Sanctuary of the Three Gauls, where representatives met to celebrate the cult of Rome and Augustus.
Germania, also called Magna Germania, Germania Libera, or Germanic Barbaricum to distinguish it from the Roman province of the same name, was a historical region in north-central Europe during the Roman era, which was associated by Roman authors with the Germanic people. The region stretched roughly from the Middle and Lower Rhine in the west to the Vistula in the east. It also extended at some point as far south as the Upper and Middle Danube and Pannonia, and to the known parts of southern Scandinavia in the north. Archaeologically, these people correspond roughly to the Roman Iron Age of those regions. While dominated by Germanic people, Magna Germania was also inhabited by a few other Indo-European people.
The Nervii were one of the most powerful Belgic tribes of northern Gaul at the time of its conquest by Rome. Their territory corresponds to the central part of modern Belgium, including Brussels, and stretched southwards into French Hainault. During their first century BC Roman military campaign, Julius Caesar's contacts among the Remi stated that the Nervii were the most warlike of the Belgae. In times of war, they were known to trek long distances to take part in battles. Being one of the northerly Belgic tribes, with the Menapii to the west, and the Eburones to their east, they were considered by Caesar to be relatively uncorrupted by civilization. According to Tacitus they claimed Germanic descent. According to Strabo they were of Germanic origin.
Germania Inferior was a Roman province from AD 85 until the province was renamed Germania Secunda in the 4th century AD, on the west bank of the Rhine bordering the North Sea. The capital of the province was Colonia Claudia Ara Agrippinensium.
Gallia Aquitania, also known as Aquitaine or Aquitaine Gaul, was a province of the Roman Empire. It lies in present-day southwest France, where it gives its name to the modern region of Aquitaine. It was bordered by the provinces of Gallia Lugdunensis, Gallia Narbonensis, and Hispania Tarraconensis.
The Belgae were a large confederation of tribes living in northern Gaul, between the English Channel, the west bank of the Rhine, and the northern bank of the river Seine, from at least the third century BC. They were discussed in depth by Julius Caesar in his account of his wars in Gaul. Some peoples in southern Britain were also called Belgae and had apparently moved from the continent. T. F. O'Rahilly believed that some had moved further west and he equated them with the Fir Bolg in Ireland. The Roman province of Gallia Belgica was named after the continental Belgae. The term continued to be used in the region until the present day and is reflected in the name of the modern country of Belgium.
The Menapii were a Belgic tribe dwelling near the North Sea, around present-day Cassel, during the Iron Age and the Roman period.
The Tungri were a tribe, or group of tribes, who lived in the Belgic part of Gaul, during the times of the Roman Empire. Within the Roman Empire, their territory was called the Civitas Tungrorum. They were described by Tacitus as being the same people who were first called "Germani" (Germanic), meaning that all other tribes who were later referred to this way, including those in Germania east of the river Rhine, were named after them. More specifically, Tacitus was thereby equating the Tungri with the "Germani Cisrhenani" described generations earlier by Julius Caesar. Their name is the source of several place names in Belgium, Germany and the Netherlands, including Tongeren, Tongerlo Abbey, and Tongelre.
The Remi were a Belgic tribe dwelling in the Aisne, Vesle and Suippe river valleys during the Iron Age and the Roman period. Their territory roughly corresponded the modern Marne and Ardennes and parts of the Aisne and Meuse departments.
The Trēverī were a Germanic or Celtic tribe of the Belgae group who inhabited the lower valley of the Moselle in modern day Germany from around 150 BCE, if not earlier, until their displacement by the Franks. Their domain lay within the southern fringes of the Silva Arduenna, a part of the vast Silva Carbonaria, in what are now Luxembourg, southeastern Belgium and western Germany; its centre was the city of Trier, to which the Treveri give their name. Celtic in language, according to Tacitus they claimed Germanic descent. They contained both Gallic and Germanic influences.
Durocortorum was the name of the city Reims during the Roman era. It was the capital of the Remi tribe and the second largest city in Roman Gaul.
The Vangiones appear first in history as an ancient Germanic tribe of unknown provenance. They threw in their lot with Ariovistus in his bid of 58 BC to invade Gaul through the Doubs river valley and lost to Julius Caesar in a battle probably near Belfort. After some Celts evacuated the region in fear of the Suebi, the Vangiones, who had made a Roman peace, were allowed to settle among the Mediomatrici in northern Alsace.. They gradually assumed control of the Celtic city of Burbetomagus, later Worms.
Roman Gaul refers to Gaul under provincial rule in the Roman Empire from the 1st century BC to the 5th century AD.
The Diocese of Gaul was a diocese of the later Roman Empire, under the praetorian prefecture of Gaul. It encompassed northern and eastern Gaul, that is, modern France north and east of the Loire, including the Low Countries and modern Germany west of the Rhine.
For around 450 years, from around 55 BC to around 410 AD, the southern part of the Netherlands was integrated into the Roman Empire. During this time the Romans in the Netherlands had an enormous influence on the lives and culture of the people who lived in the Netherlands at the time and (indirectly) on the generations that followed.
The Belgian province of Limburg in Flanders is a region which has had many names and border changes over its long recorded history. Its modern name is a name shared with the neighbouring province of the Netherlands, with which it was for a while politically united. The two provinces received their modern name after 1815, based upon the name of the medieval Duchy of Limburg, which had actually been in what is now neighbouring Wallonia, centred upon the town of Limbourg on the Vesdre.
The Germani cisrhenani, or "Left bank Germani", were a group of Germanic peoples who lived west of the Lower Rhine at the time of the Gallic Wars in the mid-1st century BC.
The Civitas Tungrorum was a large Roman administrative district dominating what is now eastern Belgium and the southern Netherlands. In the early days of the Roman Empire it was in the province of Gallia Belgica, but it later joined the neighbouring lower Rhine River border districts, within the province of Germania Inferior. Its capital was Aduatuca Tungrorum, now Tongeren.
Belgiumportal 
Luxembourgportal 
