Norwich was given a grant of murage dated 12/11/1317.
This was in the form of:-
Wording
Grant for three years to the citizens and good men of Norwich of murage upon all wares for sale brought into their town. By K.
Granted by Edward II. (Regnal year 11). Granted at Windsor. Granted by K..
Details of the petition which resulted in this grant can be seen
at this link. 
Primary Sources
Maxwell Lyte, H.C. (ed), 1903,
Calendar of Patent Rolls Edward II (1317-21) Vol. 3 p. 50
online copy
Secondary Sources
Coulson, Charles, 2009,
Murage Grants (Handwritten list and notes)
Turner, H.L., 1971,
Town Defences in England and Wales (London) p. 137
Blomefield, Francis (continued by Charles Parkin), 1739-75,
An Essay towards a Topographical History of the County of Norfolk (Fersfield and Lynn) Vol. 3
online copy
Comments
In 1317, there was another murage granted, (Pat. Ao 11 E. 2. p. 1.) by the help of which, the walls were finished in 1319, or 1320. (Blomefield)
The petition request 7 years.
Record created by Philip Davis. This record created 13/01/2009. Last updated on 03/05/2012. First published online 5/01/2013.
