A coat of arms is a heraldic visual design on an escutcheon, surcoat, or tabard. The coat of arms on an escutcheon forms the central element of the full heraldic achievement, which in its whole consists of a shield, supporters, a crest, and a motto. A coat of arms is traditionally unique to the armiger. The term "coat of arms" itself, describing in modern times just the heraldic design, originates from the description of the entire medieval chainmail "surcoat" garment used in combat or preparation for the latter.
Coats of Arms in the Dering Roll, an English armorial from the 13th century
Brabant Lion held by Floris de Merode during the funeral of Albert VII, Archduke of Austria, print after design by Jacob Franquart
The German Hyghalmen Roll, c. late 15th century, illustrates the German practice of thematic repetition from the arms in the crest
Arms of the Duke of Richmond c. 1780
Heraldry is a discipline relating to the design, display and study of armorial bearings, as well as related disciplines, such as vexillology, together with the study of ceremony, rank and pedigree. Armory, the best-known branch of heraldry, concerns the design and transmission of the heraldic achievement. The achievement, or armorial bearings usually includes a coat of arms on a shield, helmet and crest, together with any accompanying devices, such as supporters, badges, heraldic banners and mottoes.
The German Hyghalmen Roll was made in the late 15th century and illustrates the German practice of repeating themes from the arms in the crest. (See Roll of arms).
Reverse of the Narmer Palette, circa 3100 BC. The top row depicts four men carrying standards. Directly above them is a serekh containing the name of the king, Narmer.
Fresco depicting a shield of a type common in Mycenaean Greece.
Vase with Greek soldiers in armor, circa 550 BC.