ملف:Coat of arms of the dukes of Beaufort.png

Arms. Quarterly, France and England, within a Bordure compone, argent and azure : anciently, Or, on a fess bordered gobone (or compone) argent and azure, France and England, quarterly.

Crest. On a wreath, a portcullis, Or nailed Azure, chains pendant thereto of the first, which the family bears in memory of John of Gaunt's castle of Beaufort, before mentioned. Antiently the crest was a panther, Argent, diversely spotted, and gorged with a ducal coronet, Or.

Supporters. On the dexter side a panther, Argent, spotted with various colours, fire issuing out of his mouth and ears proper, gorged with a collar, and chain pendant, Or: on the sinister, a wyvern, vert, holding in his mouth a sinister hand coupé at the wrist proper [alias gules].

Motto. Mutare vel timere sperno

• Collins Peerage of England