Coat of Arms of the Duke of Westminster, i.e. "Quarterly: 1st and 4th, Azure a Portcullis with chains pendant Or on a Chief of the last between two united Roses of York and Lancaster a Pale charged with the Arms of King Edward the Confessor (i.e. the old arms of the City of Westminsteroriginally granted 1 October 1601 to Borough of Westminster, regranted by royal warrant dated 6 November 1901 to Metropolitan borough. Source: A.C. Fox-Davies, The Book of Public Arms (T. C. &amp; E. C. Jack, London, 1915. See )); 2nd and 3rd, Azure a Garb Or (Grosvenor), a reference to the garbs in the arms of the Earls of Chester, their feudal overlords. These "modern" arms were adopted in 1389 after the family lost the famous lawsuit of Scrope v Grosvenor contesting the right to the arms Azure, a bend or (Grosvenor "ancient")"
Own work
JMvanDijk