The second best example of a Caster, perhaps, is Lancaster. In all probability this is the station which appears in the _Notitia Imperii_ as Longovico, an oblique case which it might be hazardous to put in the nominative, seeing that it seems rather to mean the town on the Lune or Loan than the Long Village. Here, as in many other cases, the formative element, vicus, is exchanged for Ceaster, and we get something like Lon-ceaster or finally Lancaster. Other remarkable Casters are Brancaster in Norfolk, once Branadunum (where the British termination _dun_ has been similarly dropped); Ancaster in Lincolnshire, whose Roman name is not certainly known; and Caistor, near Norwich, once Venta Icenorum, a case which may best be considered under the head of Winchester. On the other hand, Tadcaster gives us an instance where the Roman prefix has apparently been entirely altered, for it appears in the Antonine Itinerary (according to the best identification) as Calcaria, so that we might reasonably expect it to be modernised as Calcaster. Even here, however, we might well suspect an earlier alternative title, of which we shall get plenty when we come to examine the Chesters; and in fact, in Baeda, it still bears its old name in a slightly disguised form as Kaelca ceaster. First among the softer forms, let us examine the interesting group to which Chester itself belongs. Its Roman name was, beyond doubt, Diva, the station on the Dee--as Doncaster is the station on the Don, and Lancaster the station on the Lune. Its proper modern form ought, therefore, to be Deechester. But it would seem that in certain places the neighbouring rustics knew the great Roman town of their district, not by its official title, but as the legion's Camp--Castra Legionis. At least three such cases undoubtedly occur--one at Deva or Chester; one at Ratae or Leicester; and one at Isca Silurum or Caerleon-upon-Usk. In each case the modernisation has taken a very different form. Diva was captured by the heathen English king, AEthelfrith of Northumbria, in a battle rendered famous by Baeda, who calls the place 'The City of Legions.' The Latin compilation by some Welsh writer, ascribed to Nennius, calls it Cair Legion, which is also its name in the Irish annals. In the _English Chronicle_ it appears as Lege ceaster, Laege ceaster, and Leg ceaster; but after the Norman Conquest it becomes Ceaster alone. On midland lips the sound soon grew into the familiar Chester. About the second case, that of Leicester, there is a slight difficulty, for it assumes in the _Chronicle_ the form of Laegra ceaster, with an apparently intrusive letter; and the later Welsh writers seized upon the form to fit in with their own ancient legend of King Lear. Nennius calls it Cair Lerion; and that unblushing romancer, Geoffrey of Monmouth, makes it at once into Cair Leir, the city of Leir. More probably the name is a mixture of Legionis and Ratae, Leg-rat ceaster, the camp of the Legion at Ratae.