The Welshmen hauing intelligence that the king was returned home, brake foorth againe as before into the English marshes, and not onelie tooke preies and booties, but went about to destroie with fire and sword all that stood in their way. Howbeit in their returne, and as they ranged abroad somewhat vnaduisedlie, they were intrapped by the souldiers which the king had left there for the defense of the countrie, and put to flight néere the castell of Mountgomerie, with great slaughter & losse of their people. But Leolin nothing dismaied therwith, assembled a greater power than he had before, and began foorthwith to rob and spoile within the English marshes with paganish extremitie. Which thing when it came to the vnderstanding of the king, he was verie sore displeased, that so meane a man as Leolin was, should put him to so much trouble, therefore he raised a farre greater armie than he had doone at anie time before, and with the same came to the citie of Hereford. [Sidenote: _Matt. Paris._] [Sidenote: The Englishmen distressed.] [Sidenote: Mawds castell repaired.] In the meane time Leolin comming néere vnto the said castell of Mountgomerie, by the practise of a traitorous moonke, trained foorth the English souldiers which laie in garrison there, and counterfeiting to flée, till he had laid them vp in bogs and mires with their horsses, so as they could not helpe themselues, he fell vpon them, and so slue and tooke a great number of them euen as he could haue wished. The king aduertised hereof, hasted the faster forward, and comming into those parts, as he passed by an abbeie of the Cisteaux order (of which house the moonke was that had betraied the Englishmen of Mountgomerie) he burned a grange that belonged to the same abbeie, and further spoiling the same abbeie it selfe, he had set it on a light fire also, if the abbat therof had not redéemed it with the summe of thrée hundred marks of siluer. After this, he caused Mawds castell to be repaired and fortified, which the Welshmen in times past had ouerthrowne, and when the worke was finished, he left there a strong garrison of souldiers to kéepe backe the Welshmen from making their accustomed incursions. [Sidenote: _Matth. Paris._] [Sidenote: Henrie earle of Britaine, and the earle of Chester distresse the French kings cariages.] [Sidenote: A truce taken.]