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
Viridia (gens) that translates as "firm, strong, hardy", and "Tertulla", a diminutive of "Tertia", an old feminine praenomen, which was widely used as a surname throughout Roman history. Viridia (gens) The gens Viridia was an obscure plebeian family at ancient Rome. Members of this gens are known only from inscriptions, evidently dating to imperial times. The nomen "Viridius" seems to be derived from the Latin "viridis", green. Since one of the Viridii left a libationary inscription at Aquae Sulis in Britain, some connection with the obscure British deity Viridios has been suggested, but other Viridii are known from different parts of the