Within a few daies after came the king with his armie, and entring into Wales, for want of vittels was constreined to retire backe to the marshes, betwixt Worcestershire & Salopshire, where staieng certeine daies togither in those parts, his souldiers straied abroad in the countrie vnaduisedlie, and kéeping no watch nor ward about their campe, were surprised in the night by their enimies, and slaine on euerie side. The slaughter had béene greater, but that the residue which laie in campe, brake foorth about midnight, and in a plumpe togither fled into a castell which was néere at hand, called Grossemound, in the which the king himselfe was lodged. There were slaine aboue fiue hundred men, and all the trusse and baggage of the campe lost. Yet Matthew Paris saith there were but two knights slaine, which cast awaie themselues by their owne wilfulnesse, that would néeds stand to it and make resistance, where the residue being spoiled of all that they had with them, got awaie by flight, as the bishops of Winchester and Chichester, the lord chéefe iustice Stephan Segraue, Peter de Riuales treasurer, Hugh Bigot earle of Norfolke, William earle of Salisburie, William lord Beauchampe, and William Dalbenie the yoonger, who were witnesses of this losse amongst the residue. [Sidenote: _Polydor._] [Sidenote: The king returneth out of Wales.] Hereof, it came to passe, that manie of the kings armie (speciallie those which had lost their horsses, armour, monie, and other furniture, with their vittels) returned into their countrie, to their great confusion. For the Welshmen and other outlawes, hauing spoiled the campe, returned with the cariages and sumpters which they had taken, into places of safe refuge. The king hauing receiued this losse, and oftentimes tried fortune nothing fauourable vnto him in those parts, by reason of the streits and disaduantage of the places, thought good to reserue the reuenge of his receiued iniuries vntill a more conuenient time, and therevpon returned to Glocester, and furnished diuers castels and fortresses in the borders of Wales, with garrisons of souldiers, namelie Poictouins and other strangers to defend the same against William Marshall, and the other his complices, who vpon occasions dailie sought to suppresse and distresse the said strangers. [Sidenote: The earle of Penbroke in danger.] [Sidenote: He is rescued.] [Sidenote: The Poictouins discomfited.]