Coat of arms

A coat of arms is a heraldic visual design on an escutcheon (i.e., shield), surcoat, or tabard (the last two being outer garments), originating in Europe. 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 (e.g. an individual person, family, state, organization, school or corporation). 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.

Rolls of arms are collections of many coats of arms, and since the early Modern Age centuries, they have been a source of information for public showing and tracing the membership of a noble family, and therefore its genealogy across time.

Heraldic designs came into general use among European nobility in the 12th century. Systematic, heritable heraldry had developed by the beginning of the 13th century. Exactly who had a right to use arms, by law or social convention, varied to some degree between countries. Early heraldic designs were personal, used by individual noblemen (who might also alter their chosen design over time). Arms became hereditary by the end of the 12th century, in England by the time of King Richard I during the Third Crusade (1189–1192).

Burgher arms were used in Northern Italy in the second half of the 14th century, and in the Holy Roman Empire by the mid 14th century. In the late medieval period, use of arms spread to the clergy, to towns as civic identifiers, and to royally chartered organizations such as universities and trading companies. The arts of vexillology and heraldry are closely related.

The term coat of arms itself in origin refers to the surcoat with heraldic designs worn by combatants, especially in the knightly tournament, in Old French cote a armer. The sense is transferred to the heraldic design itself in Middle English, in the mid-14th century.

Despite no common, enforceable widespread regulation,^{[citation needed]} heraldry has remained consistent across Europe, where tradition alone has governed the design and use of arms.^{[citation needed]} Some nations, such as England and Scotland, still maintain the same heraldic authorities which have traditionally granted and regulated arms for centuries and continue to do so in the present day. In England, for example, the granting of arms is and has been controlled by the College of Arms. Unlike seals and other general emblems, heraldic "achievements" have a formal description called a blazon, which uses vocabulary that allows for consistency in heraldic depictions. In the present day, coats of arms are still in use by a variety of institutions and individuals: for example, many European cities and universities have guidelines on how their coats of arms may be used, and protect their use as trademarks as any other unique identifier might be. Many^{[citation needed]} societies exist that also aid in the design and registration of personal arms.

Heraldry has been compared to modern corporate logos.

The French system of heraldry greatly influenced the British and Western European systems. Much of the terminology and classifications are taken from it. However, with the fall of the French monarchy (and later Empire) there is not currently a Fons Honorum (power to dispense and control honors) to strictly enforce heraldic law. The French Republics that followed have either merely affirmed pre-existing titles and honors or vigorously opposed noble privilege. Coats of arms are considered an intellectual property of a family or municipal body. Assumed arms (arms invented and used by the holder rather than granted by an authority) are considered valid unless they can be proved in court to copy that of an earlier holder.