Note 1120 — Chapter VII · JOHN LACKLAND 1215–1216
Reading edition
W. Coventry, vol. ii. p. 226. R. Coggeshall, p. 177, says that John had contrived to prevent some of the northern barons from joining them by means of forged letters purporting to come from Fitz-Walter and his comrades, telling the Northerners that their help was no longer needed.