It is supposed that the town was founded by the Britons of the kingdom of Powis, while they were yet struggling with the Saxons, or rather the Angles, for the midland counties, and, it is probable, was founded by them when they found Uttoxeter (the Uriconiam of the Romans), no longer tenable. On the conquest of the town by the Anglo-Saxons it received the name of Scrobbes- byrig; that is to say Scrub-burgh, or a town in a scrubby or bushy district, and, in the Saxon Chronicle, Scrobbesbyrig-scire is mentioned, now corrupted or polished into Shropshire. Ethelfleda, whose name we have so often had occasion to mention as the builder of castles and churches, founded the collegiate church of St. Alkmund; and Athelstan established a mint here. It is evident that the "Athelstan the Unready," mentioned in Ivanhoe, must have very much degenerated from the ancestor who established a mint for ready money. According to Domesday-Book, Shrewsbury had, in Edward the Confessor's time, two hundred and fifty-two houses, with a resident burgess in each house, and five churches. It was included in the Earldom of Shrewsbury, granted by William the Conqueror to his kinsman, Roger de Montgomery, who erected a castle on the entrance of the peninsula on which the town now stands, pulling down fifty houses for that purpose. In the wars between Stephen and the Empress Maude, the Castle was taken and retaken; and in the reign of John the town was taken by the Welsh under Llewellyn the Great, who had joined the insurgent Barons in 1215; and again attacked and the suburbs burned by the Welsh in 1234. Shrewsbury was again taken by Simon de Montfort and his ally, Llewellyn, grandson of Llewellyn the Great, in 1266, the year before de Montfort fell on the field of Evesham. And here, in 1283, David, the last Prince of Wales, was tried, condemned, and executed as a traitor. Here, too, in 1397, in the reign of Richard II., a Parliament was held, at which the Earl of Hereford (afterwards Henry IV.) charged the Duke of Norfolk with treason. The charge was to have been decided by a trial of battle at Coventry. On the appointed morning, "Hereford came forth armed at all points, mounted on a white courser, barded with blue and green velvet, gorgeously embroidered with swans and antelopes of goldsmiths' work. The Duke of Norfolk rode a horse barded with crimson velvet, embroidered with lines of silver and mulberries."