The Holinshed Texts (1587, Volume 6, p. 55)

Compare 1577 edition: 1 Wil. Malm. Earle of Glo|coster retur|neth.Wherevpon the earle of Glocester came backe a|gaine himselfe, and bringing with him somewhat lesse than foure hundred men of armes (imbarked in 52. ships) landed with the same at Warrham, and besieged the castell there, which his enimies had won out of his hands whilest he was absent in Norman|die. Ger. Dor. In the end they that were within it (vnder the gouernment of Herebert de Lucy) fell to agreement by composition, that if they were not succoured by a certeine time, they should deliuer the castell vnto the earle. Wil. Malm. King Stephan himselfe the same time held a siege before Oxford, within the which he had inclosed the empresse, as hereafter shalbe shewed: so that they within the castell of Warrham had no succour sent vnto them, and therefore (according to the articles of their composition) they yeelded vp the hold, after erle Robert had lien three wéekes before it.

Compare 1577 edition: 1 This castell being thus woone, earle Robert sub|dued also such as kept the Ile of Portland,The Ile of Portland. Circester. and had fensed it after the maner of a fortresse: afterwards he came to Circester, and there assembled all those that fauoured the part of the empresse, meaning with all conuenient spéed to go to Oxford, & there to giue battell to king Stephan, if he would abide it. Who after his deliuerance from captiuitie, had assembled a great host of men,The empresse besieged in Oxford. and comming to Oxford, where the empresse then laie, suddenlie besieged hir, before she looked for him. And to the end also that he might compell the townsmen to yeeld, or else kéepe them from entring which would come to their succors, he ranged abroad into the countrie with part of his ar|mie, wasting all afore him by fire & sword. This siege continued almost two moneths, in maner from his deliuerie in the beginning of Nouember, vntill Christmasse immediatlie following: in somuch that through lacke of vittels they within the towne be|gan to raise mutinies. The empresse therefore doub|ting the sequele, and séeing hir prouision to decaie, deuised a shift how to escape that present danger, which by force she was vnlikelie to performe.

Compare 1577 edition: 1 It was a verie hard winter that yeare, the Thames and other riuers thereabouts were frosen, so that both man and horsse might safelie passe ouer vpon the yce,

N. Triuet. Simon Dun. Wil. Paru. Ran. Higd. Matth. Paris.

The empresse escapeth out of Oxford.

Polydor. Wil. Malm. Simon Dun. Matth. Paris.

Brian sonne to the earle of Glocester.

the fields were also couered with a thicke and déepe snow. Herevpon taking occasion, she clad hir selfe and all hir companie in white appa|rell, that a far off they might not be discerned from the snow; and so by negligence of the watch that kept ward but slenderlie, by reason of the excéeding cold weather, she and hir partakers secretlie in the night issued out of the towne, and passing ouer the Thames, came to Walingford, where she was recei|ued into the castell by those that had the same in kée|ping to hir vse: of whom Brian the sonne to the erle of Glocester was the chiefe.