Waterford was given a grant of murage dated 24/10/1390.
This was in the form of:-
Wording
Grant, with the assent of the Council and in consideration of similar and heavier perils and charges sustained by the mayor and commonalty of Waterford, extending the grant to them by letters patent dated 18 July, 12 Richard II, of the 'coket' custom for ten years after the expiration of the term of three years for which it was then granted to them, with the like condition. {Calendar of Patent Rolls, p. 492.} By p.s.
Granted by Richard II. (Regnal year 14). Granted at Westminster. Granted by p.s..
Details of the petition which resulted in this grant can be seen
at this link. 
Primary Sources
Maxwell Lyte, H.C. (ed), 1902,
Calendar of Patent Rolls Richard II (1389-92) Vol. 4 p. 314
online copy
Secondary Sources
Lydon, J.F., 1979, 'The city of Waterford in the later Middle Ages'
Decies Vol. 12 p. 5-15
online copy
Comments
The 'like condition' is expenditure on walls and fortifications by survey of the chief baron of the Exchequer in Ireland.
Record created by Philip Davis. This record created 07/04/2009. Last updated on 03/05/2012. First published online 5/01/2013.
