During the following half century, the Helvetii would become increasingly romanized. During this time, there were two settlements near where Aventicum would be founded. The first was the oppidum on Mont Vully between Lake Murten and Lake Neuchatel, which was given up in the 1st century BC. The second was the Bois de Châtel, which was fortified in the second half of the 1st century BC. The Bois de Châtel would be destroyed early in the 1st century AD and the population moved to Aventicum.