York was given a grant of murage dated 11/6/1369.
This was in the form of:-
Wording 
Grant to the mayor, bailiffs and citizens of York of murage for ten years. By pet. in C.
Granted by Edward III. (Regnal year 43). Granted at Westminster. Granted by pet. of C..
Primary Sources 
Maxwell Lyte, H.C. (ed), 1913, 
Calendar of Patent Rolls Edward III (1367-70) Vol. 14 p. 269 
online copy
Secondary Sources 
Coulson, Charles, 2009, Murage Grants (Handwritten list and notes)
     
Record created by Philip Davis. This record created 17/01/2009. Last updated on 03/05/2012. First published online 5/01/2013.