Bath city walls the Romans, to surround their town (known then as "Aquae Sulis"), probably in the 3rd century. The Anglo-Saxons by the 10th century had established Bath as a fortified "burh" (borough), utilising the existing town walls, and maintaining Bath as a centre of regional power. Bath, located on the northern edge of the kingdom of Wessex, would have guarded against any attack from neighbouring Mercia, which was held by the Danes for a time. The height of the walls was increased on the orders of King Stephen during The Anarchy. Bath's medieval walls included four gates. The North and South Gates
Sulis Minerva. Senua's name appears on votive plaques bearing Minerva's image, while Brigantia also shares many traits associated with Minerva. The identification of multiple Celtic gods with the same Roman god is not unusual (both Mars and Mercury were paired with a multiplicity of Celtic names). On the other hand, Celtic goddesses tended to resist syncretism; Sulis Minerva is one of the few attested pairings of a Celtic goddess with her Roman counterpart. Dedications to “Minerva” are common in both Great Britain and continental Europe, normally without any Celtic epithet or interpretation. (Cf. Belisama for one exception.) Based on her name's