Arms: Quarterly Or and Argent a Cross wavy Vert surmounted of a Daffodil Flower Or between in the first quarter a Lion Gules in the second and third a Lion Sable and in the fourth a Lion Purpure all rampant.
Crest: On a Wreath Or and Gules on a Mount a Castle of two degrees and four towers proper issuant therefrom a demi Dragon Gules supporting a Staff proper flying therefrom a forked Pennon per fess Argent and Vert.
Supporters: On the dexter side a Wyvern Gules gorged with a Collar paly of eight Argent and Gules resting the exterior foot on a Sword point downwards in bend sinister proper hilt and pommel Or and on the sinister side a Wyvern Or gorged with a collar paly of eight Argent and Azure and resting the exterior foot on a like Sword in bend.
Motto: 'GWERTH CYNGOR GWASANAETH' - The virtue of a Council is its service.
The arms were officially granted on October 10, 1975.
The shield features four rampant lions. The red lion on gold in the first quarter is from the arms of Owain Glyndwr. The black lion on white in the second and fourth quarters is from the arms of Owain Brogyntyn. The purple lion on gold of the fourth quarter is form the arms of de Lacy, Lord Denbigh.
The four arms of the wavy green cross suggest the districts four main river valleys. The daffodill, symbol of Wales, has six petals for the six Welsh councils merged.
The red and gold livery of the wreath and mantling was that of Owain Glyndwr. The crest has a castle of four towers standing for Glyndwr's four principal castles.
The supporters are two wyverns. The red wyvern was Owain Glyndwr's crest, and has a collar of red and white from Glyndwr's paternal coat. The gold wyvern with blue and white collar comes from the arms of Grey de Ruthyn.The motto means "The virtue of a council is in its service".
Literature : Information provided by Laurence Jones (firstname.lastname@example.org).