Nemausus is often said to have been the Celtic patron god of Nemausus Nimes. The god does not seem to exist separely from the locality. The city certainly derived its name from Nemausus, which was perhaps the sacred wood in which the Celtic tribe of Volcae Arecomici (who of their own accord surrendered to the Romans in 121 BCE) held their assemblies (according to Encyclopaedia Britannica 1911), or was perhaps the local Celtic spirit guardian of the spring that originally provided all water for the settlement, as many modern sources suggest. Or perhaps Stephanus of Byzantium was correct in stating in his geographical dictionary that Nemausos, the city of Gaul, took its name from the Heracleid (or son of Heracles) Nemausios.