Edgar Atheling appeared from Scotland, and brought along with him Cospatric, Waltheof, Siward, Bearne, Merleswain, Adelin, and other leaders, who, partly from the hopes which they gave of Scottish succours, partly from their authority in those parts, easily persuaded the warlike and discontented Northumbrians to join the insurrection. Mallet, that he might better provide for the defence of the citadel of York, set fire to some houses which lay contiguous; but this expedient proved the immediate cause of his destruction. The flames, spreading into the neighbouring streets, reduced the whole city to ashes: the enraged inhabitants, aided by the Danes, took advantage of the confusion to attack the castle, which they carried by assault; and the garrison, to the number of three thousand men, was put to the sword without mercy [o]. [FN [l] Gul. Gemet. p. 290. Order. Vital. p. 513. Anglia Sacra, vol. i. p. 246. [m] Order. Vital. p. 512. Chron. de Mailr. p. 116. Hoveden, p. 450. M. Paris, p. 5. Sim. Dun. p. 198. [n] Order. Vital. p. 512. [o] Order. Vital. p. 513. Hoveden, p. 451.] This success proved a signal to many other parts of England, and gave the people an opportunity of showing their malevolence to the Normans. Hereward, a nobleman in East Anglia celebrated for valour, assembled his followers, and taking shelter in the Isle of Ely, made inroads on all the neighbouring country [p]. The English in the counties of Somerset and Dorset rose in arms, and assaulted Montacute, the Norman governor; while the inhabitants of Cornwall and Devon invested Exeter, which, from the memory of William's clemency, still remained faithful to him. Edric the Forester, calling in the assistance of the Welsh, laid siege to Shrewsbury, and made head against Earl Brient and Fitz-Osberne, who commanded in those quarters [q]. The English, every where, repenting their former easy submission, seemed determined to make by concert one great effort for the recovery of their liberties, and for the expulsion of their oppressors. [FN [p] Ingulph. p. 71. Chron. Abb. St. Petri de Burgo, p. 47. [q] Order. Vital. p. 514.]