| Part of aseries on |
| Heraldicachievement |
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| External devices in addition to the centralcoat of arms |
Inheraldic achievements, thehelmet orhelm is situated above theshield and bears thetorse andcrest. The style of helmet displayed varies according torank andsocial status, and these styles developed over time, in step with the development of actual militaryhelmets.[1][2] In some traditions, especiallyGerman and Nordic heraldry, two or three helmets (and sometimes more) may be used in a singleachievement of arms, each representing afief to which the bearer has a right. For this reason, the helmets and crests in German and Nordic arms are considered essential to the coat of arms and are never separated from it.
Open-visored or barred helmets are typically reserved for the highest ranks of nobility, while lesser nobility andburghers typically assume closed helms.[2] While these classifications remained relatively constant, the specific forms of all these helmets varied and evolved over time.[2]
Inecclesiastical heraldry, bishops and otherclergy use amitre or another rank-appropriate ecclesiastical hat in place of a helmet.[3]

The evolution of heraldic helmet shape followed the evolution of helmet design, especiallyjousting helmets, from the 14th to 16th centuries. Thearmorials of the second half of the 13th century do not include helmets. Helmets are shown as an integral part of coats in the first half of the 14th century (Codex Manesse,Zürich armorial). These helmets are still of the "great helm" type, without a movable visor. Heraldic helmets became diversified with the development of dedicated jousting armor during the 15th and 16th centuries. Jousting was abandoned as a courtly practice in the early years of the 17th century, and since then the various types of heraldic helmets are purely driven by convention, and no longer tied to improvements or fashions inarmoury.
The practice of indicating rank through the display of barred or open-face helmets appears around 1615.[4] As jousting with lances was supplanted by tourneying with maces, the object being to knock the opponent's crest off his helmet, the fully enclosed helmet gave way to helmets with enlarged visual openings with only a few bars to protect the face. These barred helmets were restricted by the imperial chancellery in Vienna to the nobility and certain doctors of law or theology, while the jousting helm was freely adopted by anyone.[5]
The direction a helmet faces and the number of bars on the grille has been ascribed special significance in later manuals, but this is not a period[clarification needed] practice.[6] A king's helmet, a golden helmet shownaffronté with the visor raised, crowned with a royal crown, became adopted by the kings ofPrussia.[6]
The helmet was not specificallygranted in an achievement of arms, but was naturally assumed by appropriate rank as a matter of "inherent right", so a helmet with torse andmantling would not be misplaced even above a shield which had no crest to place above it.[7] When multiple crests need to be depicted, the convention inEnglish heraldry is to draw the crests above a single helmet, each being separated from it, while inGerman heraldry, where multiple crests appear frequently after the 16th century, each crest is always treated as inseparable from its own helmet and turned in agreement with the helmet.[8]
In continental Europe, multiple helmets were usually turned inward, with the center helm (if an odd number) turned affronté; while in Scandinavian heraldry the helmets were usually turned outward.[9] Heraldic combinations were driven to extremes in the 18th century, e.g. the arms of the lastmargraves ofBrandenburg-Ansbach (Charles Alexander, Margrave of Brandenburg-Ansbach, r. 1737–1791) consist of a shield with 21quarterings topped with a record thirteen helmets and crests.[10]
The usage of heraldic helmets in Britain is as follows: gold helmet with bars for the royal family; silver helmet with gold bars forpeers; steel helmet with gold bars for the non-peerageScottish feudal baron; open steel helmet shown affronté forknights andbaronets; steel tournament helm forScottish clan chiefs; closed steel helmet foresquires andgentlemen.[11]
The Frenchheraldic tradition [fr] for helmets also attempted in the later period to standardize the shape of the helmet depending on the rank, with for instance helmets turned to the left (i.e., pointing to the right) for bastards, or open golden helmets for kings and emperors (the sovereign must see and know everything).[12]
The norms ofRussian heraldry regarding helmets diverge greatly from the Western European tradition. Alongside the traditional Western open helmet (silver with gold details for titled nobility, steel with gold details for everyone else), as well as the closed helmet sometimes granted by the state, "ethnic" helmets were also in use, not found anywhere else. From the 19th century onwards, ancientRussian families began to use theyerikhonka [ru], the "cap of Jericho", a medieval conical Slavic helmet similar to the Middle Easternshishak. These followed their own color system, not corresponding with the use of tinctures for Western helmets: non-titled nobles would use a steelyerikhonka with silver details, barons and counts steel with golden details,knyaz families silver with golden details. TheHouse of Romanov itself used a uniqueyerikhonka called thehelmet of Alexander Nevsky [ru], based on the royal helmet ofMichael I (once mistakenly believed to have belonged toAlexander Nevsky, hence the name). Asian noble familiesnon-Slavic origin who were integrated in the Empire were also allowed an ethnic helmet, usually amisyurka [ru], similar to theyerikhonka in shape but rounder and with an obtuse tip.[13]
In the modernRussian Federation, while private heraldry remains officially unregulated, both Western and ethnic helmets (calledsheloms in modern Russian heraldic language) are considered acceptable by prominent heraldists such as Mikhail Medvedev and Dmitry Ivanov, but only in their simplest forms, and stripped of any details that may be perceived as symbols of nobility. For Western helmets, this means using commonerkettle hats as opposed to the more aristocratic open and close helmets, whilesheloms are to be used without nasal bars, cheekpieces, or neck guards, which were sometimes found on older "ethnic" helmets. On the other hand, a commoner helmet may be complemented with amail coif below. All colors except for steel are forbidden, with the exception of the lining, for which other tinctures may be used (purpure is recommended).However, none of these restrictions apply to direct descendants of old Russian aristocracy, who can use the same helmets as their ancestors alongside the rest of their family arms.[14]
Both in Imperial and republican Russian heraldry, the direction of the helmet plays no role: whether the helmet is portrayed affronty or turned to the right depends on the shape of thecrest.
InCanadian heraldry, helmets play a little role and are not blazoned; therefore, the armiger can display their helm in whatever style they choose. One notable example of a non-traditional helmet used in Canadian heraldry is the arms ofJulie Payette, a formergovernor general of Canada, which bears anastronaut's helmet as the helm.[15] Other examples includenasal helmets,[16]Corinthian helmets,[17]parka hoods,[18] andUnited Nations peacekeeping helmets.[19]
InBelgian heraldry, barred helms are most commonly used, and are not reserved for the nobility like in some jurisdictions. They most often have gold bars, as well as a gold collar and trim. They are often lined and attached.[20]
In theRoman Catholic Church, clerics entitled to a coat of arms use agalero instead of a helmet, which is considered too belligerent for men in holy orders.
In the same way, clerics of theAnglican Communion entitled to a coat of arms use a similar black hat in place of a helmet.