So that scarcely could they [the Scots] find anything to do upon these Marches, except at Norham, where a [certain] knight, Thomas de Gray, was in garrison with his kinsfolk. It would be too lengthy a matter to relate [all] the combats and deeds of arms and evils for default of provender, and sieges which happened to him during the eleven years that he remained [there] during such an evil and disastrous period for the English. It would be wearisome to tell the story of the less [important] of his combats in the said castle.

Scalacronica, pp. 60-61