[305] Every monastery was, of course, surrounded by a wall; but it was only in certain cases and after a certain period that such walls were crenellated.

[306] Pat. 4 Edw. I., m. 12.

[307] Ibid., 13 Edw. I., m. 22.

[308] Ibid.

[309] Ibid., m. 15.

[310] Ibid., 14 Edw. I., m. 24.

[311] Ibid., m. 19 (sched.).

[312] Ibid., 24 Edw. I., m. 8.

[313] Ibid., 27 Edw. I., m. 29.

[314] Ibid., 2 Edw. II., pt. 2, m. 25. The abbot and convent of St Mary’s, York, had licence to crenellate their wall, except on the side towards the city, 12th July 1318 (Ibid., 12 Edw. II., pt. I, m. 31).