Tervanna
Thérouanne is a historic city located in northern France, not far from the border with Belgium.
It as the final resting place of King Holdin of Flanders after he was killed in the Roman war.
Thérouanne | 0 to 9th century AD
Roman Period | 1st century BC – 5th century AD
Thérouanne, then known as Tarvanna by the Romans, was established as a Roman settlement. It was located in the province of Belgica, part of the Roman Empire. The Romans built roads, fortifications, and infrastructure in the area, and Thérouanne was connected to other Roman towns and cities in northern Gaul.
Early Medieval Period | 5th – 9th century
With the decline and eventual fall of the Western Roman Empire in the fifth century, the region went through significant changes. Thérouanne was part of the Merovingian Frankish kingdom, which succeeded Roman rule. It was situated in a region that experienced various migrations and incursions by different peoples, including Franks, Saxons, and Vikings.
By the ninth century, the area was part of the Carolingian Empire, established by Charlemagne and his successors.
Sources
Historia Regum Britanniae | Geoffrey of Monmouth, c. 1138
Roman de Brut | Wace, c. 1155