Hereward the Last of The English by Charles Kingsley

Though Hereward had as yet no feud against "Bysshoppes and Archbysshoppes," save Egelsin of Selsey, who had excommunicated him, but who was at the other end of England, he had feud, as may be supposed, against Thorold, Abbot of Peterborough, and Thorold feud likewise against him. When Thorold had entered the "Golden Borough," hoping to fatten himself with all its treasures, he had found it a smoking ruin, and its treasures gone to Ely to pay Sweyn and his Danes. And such a "sacrilege," especially when he was the loser thereby, was the unpardonable sin itself in the eyes of Thorold, as he hoped it might be in the eyes of St. Peter. Joyfully therefore he joined his friend Ivo Taillebois; when, "with his usual pompous verbosity," saith Peter of Blois, writing on this very matter, he asked him to join in destroying Hereward.

Nevertheless, with all the Norman chivalry at their back, it behoved them to move with caution; for (so says the chronicler) "Hereward had in these days very many foreigners, as well as landsfolk, who had come to him to practise and learn war, and fled from their masters and friends when they heard of his fame; and some of them the king's courtiers, who had come to see whether those things which they heard were true, whom Hereward nevertheless received cautiously, on plighted troth and oath."