A Gallo-Roman city became Christian:In 52 BC the pro-consul Labienus – a lieutenant of Julius Caesar – conquered Lutetia. The cohabitation of the Gauls and the Romans went well for centuries. The town was at peace because the military front was principally in Germany. The Roman policy was tolerant in religious matters. The official doctrine was “your gods are our gods, but named differently". Little by little the Gauls and the Romans coexisted with both pantheons. Lutetia became an important commercial centre for the Roman Empire. The town was in the hands of the Nautes – merchant aristocrats who used boats for transporting their merchandise. Little remains of the gallo-roman city: the amphitheatre and the Museum of the Middle Ages - le Musée de Cluny - is situated in the ancient public baths, which can still be seen from the street.