Great Yarmouth (Great Jernemuth) was given a grant of murage dated 28/11/1402.
This was in the form of:-
Wording 
Grant to the bailiffs and burgesses of Great Jernemuth of murage for three years. 
Granted by Henry IV. (Regnal year 4). Granted at Westminster.
Primary Sources 
Maxwell Lyte, H.C. (ed), 1905, 
Calendar of Patent Rolls Henry IV (1401-05) Vol. 2 p. 179 
online copy
Secondary Sources 
Coulson, Charles, 2009, Murage Grants (Handwritten list and notes)
     
Record created by Philip Davis. This record created 19/01/2009. Last updated on 03/05/2012. First published online 5/01/2013.