In this meane while that the realme was disquieted with sore & continuall warres betwixt the Britains and Saxons (as before ye haue heard) the christian religion was not onelie abolished in places where the Saxons got habitations, but also among the Britains the right [Sidenote: The heresie of the Pelagians reuiued, _Hist. Mag._] faith was brought into danger, by the remnant of the Pelagian heresie, [Sidenote: Dubritius & Dauid lerned bishops.] which began againe to be broched by diuers naughtie persons. But Dubritius that was first bishop of Landaffe, and after archbishop of Caerleon Arwiske, and his successour Dauid, with other learned men earnestlie both by preaching and writing defended the contrarie cause, to the confuting of those errors, and restablishing of the truth. [Sidenote: CONSTANTINE.] After the death of Arthur, his coosine Constantine the sonne [Sidenote: 542.] of Cador, duke or earle of Cornewall began his reigne ouer the Britains, in the yere of our Lord 542, which was about the 15 yéere of the emperour Iustinianus almost ended, the 29 of Childebert king of France, and the first yéere well néere complet of the reigne of [Sidenote: _Galfrid_. _Matth. West._] Totilas king of the Goths in Italie. Arthur when he perceiued that he shuld die, ordeined this Constantine to succéed him, and so by the consent of the more part of the Britains he was crowned king: but the sonnes of Mordred sore repined thereat, as they that claimed the rule of the land by iust title and claime of inheritance to them from their [Sidenote: Ciuill warre.] father descended. Herevpon followed ciuill warre, so that diuers battels were striken betwéene them and in the end the two brethren were constreined to withdraw for refuge, the one to London, and the other to Winchester: but Constantine pursuing them, first came to Winchester, and by force entered the citie, and slue the one brother that was fled thither within the church of saint Amphibalus: and after comming to London, entered that citie also, and finding the other brother within a church there, slue him in like maner as he had doone the other. And so hauing dispatched his aduersaries, he thought to haue purchased to himselfe safetie: but shortlie after, his owne [Sidenote: Aurelius Conanus. Constantine slaine.] kinsman, one Aurelius Conanus arrered warre against him, who ioining with him in battell slue him in the field, after he had reigned foure yéeres. His bodie was conueied to Stonheng, and there buried beside [Sidenote: _Gyldas_.] his ancestour Vter Pendragon. Of this Constantine that seemeth to be ment, which Gyldas writeth in his booke intituled "De excidio Britanniæ," where inueieng against the rulers of the Britains in his time, he writeth thus: "Britaine hath kings, but the same be tyrants; iudges it hath, but they be wicked, oftentimes péeling and harming the innocent people, reuenging and defending, but whom? such as be guiltie