[Sidenote: An. Reg. 13. 1079.] In the yeare following, king William led a mightie armie into Wales, and subdued it; receiuing of the rulers and princes there their homages and hostages. [Sidenote: _Matth. Paris._ _Matth. West._] About the same time, Robert the kings eldest sonne, a right worthie personage, but yet as one of nature somewhat vnstable, entered into Normandie as a rebell to his father, and by force tooke diuers places into his hands. Which he did by the practise of Philip the French king, who now began to doubt of the great puissance of king William, as foreseeing how much it might preiudice him, and the whole realme of France in time to come. [Sidenote: The French king setteth the sonne against the father.] Wherefore to stop the course of his prosperous successe, he deuised a meane to set the sonne against the father. True it is that king William had promised long afore to resigne the gouernment of Normandie vnto the said Robert his sonne. Wherevpon the yoong man, being of an ambitious nature, and now pricked forward by the sinister counsell of his adherents, seeketh to obteine that by violence, which he thought would be verie long yer he should atteine by curtesie. [Sidenote: _Simon Dun._ _Matth. Paris._] King William hereof aduertised, was not a little mooued against his disobedient sonne, and curssed both him and the time that euer he begat him. Finallie, raising an armie, he marched towards him, so that they met in the field. Assoone as the one came in sight of the other, they encountred at a place called Archenbraie, and whilest the battell was at the hottest, and the footmen most busied in fight, Robert appointed a power of horssemen to breake in upon the réereward of his enemies; & he himselfe following after with all his might, chanced among other to haue a conflict with his owne father, so that thrusting him through the arme with his lance, he bare him beside his horsse, [Sidenote: The sonne ouerthroweth the father.] and ouerthrew him to the ground. The king being falne, called to his men to remount him. Robert perceiuing by his voice that it was his father, whom he had vnhorssed, spéedilie alighted, and tooke him vp, asking him forgiuenesse for that fact, and setting him vp on his owne horsse, brought him out of the prease, and suffered him to depart in safetie. King William being thus escaped out of that present danger, and séeing himselfe not able to resist the puissance of his enimies, [Sidenote: _Simon Dun._] left the field to his son, hauing lost many of his men which were slaine in battell and chace, besides a great number that were hurt and wounded, among whom his second sonne William surnamed Rufus or Red, was one; [Sidenote: _Matth. Paris._] and therefore (as some write) he bitterlie curssed his son Robert, by whom he had susteined such iniurie, losse, and dishonor. [Sidenote: The father and the sonne made friends.] Howbeit, other write, that for the courtesie which his sonne shewed, in