Gloucester (Gloucestre) was given a grant of murage dated 25/10/1302.
This was in the form of:-
Wording
Grant to the bailiffs and good men of the town of Gloucestre of murage for five years. By K. on the information of Walter de Bello {Campo}, steward of the household.
Granted by Edward I. (Regnal year 30). Granted at Westminster. Granted by K. on the information of Walter de Bello [Campo], steward of the household..
Details of the petition which resulted in this grant can be seen
at this link. 
Primary Sources
Maxwell Lyte, H.C. (ed), 1898,
Calendar of Patent Rolls Edward I (1301-1307) Vol. 4 p. 68
online copy
Secondary Sources
Coulson, Charles, 2009,
Murage Grants (Handwritten list and notes)
Herbert, N.M., 1988, Bridges, gates, and walls, and Gloucester Castle, in Herbert, N.M. (ed),
VCH Gloucestershire Vol. 4 (Oxford: OUP for the Institute of Historical Research) p. 242-7
online copy
Record created by Philip Davis. This record created 10/01/2009. Last updated on 03/05/2012. First published online 5/01/2013.