Galea and cassis are Latin terms used for Roman helmets. A helmet protected a soldier's head, cheeks and neck while leaving the face open. Its form changed from the Montefortino and Coolus families to Imperial Gallic, Imperial Italic and late Roman ridge helmets.
In brief:
galea and cassis can both denote a Roman military helmet;
type names used today are modern archaeological classifications;
date, region and troop type matter when identifying or reconstructing a helmet.
A helmet was one of the principal pieces of protective equipment used by legionaries, auxiliary soldiers and praetorians. A padded cap of felt, cloth or leather may have been worn beneath it.
Most Roman military helmets left the face exposed. Hinged cheek pieces protected the sides of the face, while the bowl and neck guard covered the crown, back of the head and upper neck. Cavalry parade helmets and some equipment associated with standard-bearers could include a face mask, but these should not be treated as the normal infantry pattern.
Origins and Early Types
Protective headgear was used throughout the ancient Mediterranean. Early Roman helmets developed through contact with neighbouring Italian and Celtic traditions. The modern term Montefortino comes from a burial site in northern Italy; it describes a broad family of helmets, not a name used by Roman soldiers themselves.
Montefortino helmets were usually made from copper alloy and had a rounded bowl, a small neck guard and a knob for attaching feathers or horsehair. Production methods probably varied between workshops. The type remained in service for centuries, from the middle Republic into the early imperial period, so individual finds must be dated by their construction and archaeological context rather than by the type name alone.
Montefortino helmet from the Celtic necropolis of Serra San Quirico. 3rd century BCE
Montefortino helmet bas-relief. Carsulae Archaeological Park of Umbria. Dating from the 3rd century BCE to the beguinning of the 1st century CE
Connoppoli helmet "evolution" scheme
Montefortino on the Capitoline Monument 91 BC Rome.
Helmets of the Principate
During the early Principate, helmet forms conventionally called Imperial Gallic and Imperial Italic became widespread, although older Montefortino and Coolus forms did not disappear at once. The labels are modern: many finds are also named after the places where examples were discovered, such as Weisenau.
Imperial Gallic helmets are commonly associated with embossed brow lines, whereas Imperial Italic examples are grouped by somewhat different construction and decorative features. The boundary between the families is not absolute, and some helmets resist simple classification. Auxiliary troops may have used plainer or less expensive equipment, but sculpture rarely allows a secure distinction between a legionary and an auxiliary helmet.
A legionnary wearing a helmet. Trajan's column. Early to mid 2nd century CE
A legionnary wearing a helmet. Trajan's column. Early to mid 2nd century CE
An auxillary wearing a helmet. Trajan's column. Early 2nd century CE
Helmets of the Principate were made from copper alloy or iron. Copper-alloy examples are especially common in first-century contexts, while iron became increasingly important later. A typical helmet had a one-piece bowl, hinged cheek pieces and a neck guard. Reinforcing bars, fittings and applied decoration varied by date and workshop.
Decoration could include embossed or applied metal elements, enamel and silvering. Surface treatment helped protect iron from corrosion. Reinforcement over the crown is often interpreted as a response to blows from above, but the date and tactical explanation of each feature should be judged from the find itself.
Imperial gallic E helmet. Iron with bronze decorations. National Archaeological Museum of Madrid. Mid-1st century CE
A Weisenau helmet. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
Imperial italic J1 helmet. Theilenhofen. Iron with bronze inserts. First quarter of the 2nd century CE
Ownership inscriptions show that military equipment could pass from one soldier to another. Several helmets bear more than one name, demonstrating repair, reuse and a service life that could extend across decades. Such evidence warns against assigning every object to a very narrow date solely from its general type.
A Signed helmet. Imperial Gallic I type. Found in Rijswijk, on the Rhine, 15 km from the Batavian settlement of Til Passevaie. Mid to late 1st century CE
A Signed helmet. Imperial Gallic I type. Found in Rijswijk, on the Rhine, 15 km from the Batavian settlement of Til Passevaie. Mid to late 1st century CE
Imperial Gallic I helmet type. Found in Rijswijk, on the Rhine, 15 km from the Batavian settlement of Til Passevaie. Mid to late 1st century CE
Late Roman Helmets
Niederbieber helmets appeared in the late second and third centuries CE and represent a heavily developed form of the earlier imperial tradition. Surviving examples were made from copper alloy, iron, or a combination of iron with copper-alloy fittings.
Helmet of the Niederbiber type, Heddernheim subtype, preserved in the Archaeological Museum of Frankfurt, turn of the 2nd-3rd centuries AD, side view
Imperial Italic H helmet from Niedermomter, late 2nd-early 3rd century AD Rhenish Museum of Local Lore, Bonn, Germany.
Helmet type Imperial Italic H, mid-3rd century AD, private collection. The owner's name is stamped inside — Julius Mansuetus
From the later third century, simpler helmets assembled from multiple plates became increasingly common. Ridge helmets joined two main halves along a central ridge and show connections with military equipment used farther east, although their development cannot be reduced to a single source.
Modern classifications include Intercisa and Berkasovo groups. Intercisa finds are often relatively plain, while some Berkasovo helmets are richly decorated, but neither label maps perfectly onto one rank or troop type. Gilding, embossed fittings, glass and gemstones on individual examples indicate that late Roman helmets ranged from practical mass equipment to high-status pieces.
Helmet of the Intercissa type, found in Augst, the 4th century CE, Römermuseum Augst.
Intercissa-type helmets (bottom) and their museum reconstructions (top), Magyar Nemzeti Museum, 4th century AD
Helmet of the Berkasovo type, Concesti subtype, burials near the village of Concesti, second half of the IV century A.D. State Hermitage Museum, inv. number: 2160-37
Crests and Officer Helmets
Officers and standard-bearers could use distinctive fittings without necessarily wearing an entirely different helmet type. Centurions are conventionally associated with a transverse crest of horsehair or feathers. Surviving mounts and artistic evidence support the use of crests, but their colour, frequency and exact attachment varied.
A popular reenactment convention gives the optio a longitudinal crest and side feathers. The evidence for treating this as a universal badge of rank is weak. A reconstruction should distinguish between an attested fitting on a specific find and a modern visual convention.
Fragment of a stela of a centurion of Legio XV Apollinaris from Carnuntum. Inscriptions connect the city with named units and people.
Imperial Italic D helmet. There is a "socket" for the crest. Iron with bronze decorations. Found at the bottom of the Rhine, Mainz (Germany). City Museum of Worms. 4th quarter of the 1st century CE
Imperial Gallic F helmet. The main material is iron. Found in Witcham Gravel, Ely, Cambridgeshire. Reposited in the Canterbure Roman Museum. Early to mid 1st century CE
Archaeological finds include crest supports and attachment fittings of several forms, as well as rare traces of organic material. A crest could be secured through rings or holders on the bowl. Longitudinal crests also appear in Roman art and may be associated with high-status soldiers, including legates and members of the Praetorian Guard, but images must be read with caution because artists could simplify or idealise equipment.
Crest holder. The material is a copper-containing alloy. Windisch, Switzerland. 40-140 CE
A horsehair crest. Chesterholm Museum Bardon Mill, Hexham NE47 7JN, England. 1-2 century CE
Crest holder. Early to mid 1st century CE
Reconstruction
A reconstructed helmet should match a defined date range, region and military role. Long use and transfer between owners allow some overlap between types, but a later form cannot be projected into an earlier period simply because older helmets remained in service.
Construction method also matters. A welded modern reproduction may be affordable and robust, while a raised or otherwise archaeologically informed bowl better represents ancient manufacture. The original find, its dimensions and publication should guide the choice more than a retailer's broad label such as "Roman helmet.
Connolly, Peter. Greece and Rome at War. London: Greenhill Books.
D'Amato, Raffaele, and Andrey Negin. Decorated Roman Armour. Barnsley: Frontline Books.
Early to Mid-First Century CE
Imperial Gallic B helmet. Museum Carnuntinum, Austria, Bad Deutsch-Altenburg. Beguinning of 1st century CE
Imperial Gallic B helmet. Museum Carnuntinum, Austria, Bad Deutsch-Altenburg. Beguinning of 1st century CE
Imperial Gallic B helmet. Museum Carnuntinum, Austria, Bad Deutsch-Altenburg. Beguinning of 1st century CE
Imperial Gallic B helmet. Museum Carnuntinum, Austria, Bad Deutsch-Altenburg. Beguinning of 1st century CE
Imperial Gallic B helmet. Museum Carnuntinum, Austria, Bad Deutsch-Altenburg. Beguinning of 1st century CE
Imperial Gallic C helmet. Found in Sisak, Croatia, in the Kupa River. Archaeological Museum of Zagreb. Second quarter of the 1st century CE
Imperial Gallic C helmet. Found in Sisak, Croatia, in the Kupa River. Archaeological Museum of Zagreb. Second quarter of the 1st century CE
Imperial Gallic A helmet. Iron. From Nijmegen. Beguinning of the first century CE
Imperial Gallic A helmet. Iron. From Nijmegen. Beguinning of the first century CE
Imperial Gallic A helmet. Iron. From Nijmegen. Beguinning of the first century CE
Imperial Gallic A helmet. Tinned bronze. Private collection of Axel Guttmann. Beguinning of the first century CE
Imperial Gallic A helmet. Tinned bronze. Private collection of Axel Guttmann. Beguinning of the first century CE
Imperial Gallic A helmet. Tinned bronze. Private collection of Axel Guttmann. Beguinning of the first century CE
Imperial Gallic A helmet. Tinned bronze. Private collection of Axel Guttmann. Beguinning of the first century CE
Imperial Gallic B helmet. National Archaeological Museum of Madrid. Early 1st century CE
Imperial Gallic B helmet. National Archaeological Museum of Madrid. Early 1st century CE
Imperial Gallic F helmet. The main material is iron. Found in Witcham Gravel, Ely, Cambridgeshire. Reposited in the Canterbure Roman Museum. Early to mid 1st century CE
Imperial Gallic F helmet fragment. The main material is iron. Found in Witcham Gravel, Ely, Cambridgeshire. Reposited in the Canterbure Roman Museum. Early to mid 1st century CE
Imperial Gallic F helmet fragment. The main material is iron. Found in Witcham Gravel, Ely, Cambridgeshire. Reposited in the Canterbure Roman Museum. Early to mid 1st century CE
Imperial Gallic F helmet fragment. The main material is iron. Found in Witcham Gravel, Ely, Cambridgeshire. Reposited in the Canterbure Roman Museum. Early to mid 1st century CE
Imperial Gallic F helmet fragment. The main material is iron. Found in Witcham Gravel, Ely, Cambridgeshire. Reposited in the Canterbure Roman Museum. Early to mid 1st century CE
Imperial Italic helmet Weisenau. Bronze. The height of the helmet with a stand is 400 mm, the depth is 360 mm, the dome width is 200 mm, the neck guard width is 260 mm. Cheek plates are a modern reenactment. Sold at the Hermann Historica auction. May auction # A79aw, lot # 1051. Early to mid 1st century CE
Imperial Italic helmet Weisenau. Bronze. The height of the helmet with a stand is 400 mm, the depth is 360 mm, the dome width is 200 mm, the neck guard width is 260 mm. Cheek plates are a modern reenactment. Sold at the Hermann Historica auction. May auction # A79aw, lot # 1051. Early to mid 1st century CE
Imperial Italic helmet Weisenau. Bronze. The height of the helmet with a stand is 400 mm, the depth is 360 mm, the dome width is 200 mm, the neck guard width is 260 mm. Cheek plates are a modern reenactment. Sold at the Hermann Historica auction. May auction # A79aw, lot # 1051. Early to mid 1st century CE
Vaisau helmet type, Imperial Italic. The height of the helmet is 19.5 cm, it weights 1400 g., made out bronze. Courtesy Hermann Historica, International auction-Munich-D. Early to mid 1st century CE
Vaisau helmet type, Imperial Italic. The height of the helmet is 19.5 cm, it weights 1400 g., made out bronze. Courtesy Hermann Historica, International auction-Munich-D. Early to mid 1st century CE
Vaisau helmet type, Imperial Italic. The height of the helmet is 19.5 cm, it weights 1400 g., made out bronze. Courtesy Hermann Historica, International auction-Munich-D. Early to mid 1st century CE
Imperial Gallic B helmet. Found in Klakanje, Yugoslavia. Beguinning of 1st century CE
Weisenau Imperial gallic C helmet. Found in Siscia. Arheological museum in Zagreb, Croatia. Early to mid 1st century CE
Roman bronze helmet. Found in France (Druzenheim). Early to mid 1st century
Roman imperial gallic helmet, Weisenau. Iron. Nijmegen. Beguinning of the 1st century
Coolus type E helmet. Bronze. The British Museum. Early to mid 1st century CE
An Agent-Port helmet. Found in Rouen, France. Reposited in the Aalen Museum, Germany. First half of the 1st century AD
Vaisau helmet type, Imperial Italic. The height of the helmet is 20 cm, bronze. Private collection. Beguinning of the 1st century CE
A Roman helmet dating from the 1st century CE. The helmet was discovered in ancient amphitheater near Besancon, France. The helmet was originally silvered, and also the helmet has mounts for the crest.
Bronze helmet found in Anapa in 2023. I-th century AD
Bronze helmet found in Anapa in 2023. I-th century AD
Roman iron helmet. National Museum of the Roman Legion Carleon. first half of the first century AD
Roman iron helmet. National Museum of the Roman Legion Carleon. first half of the first century AD
Roman iron helmet. National Museum of the Roman Legion Carleon. first half of the first century AD
Roman iron helmet. National Museum of the Roman Legion Carleon. first half of the first century AD
Roman iron helmet. National Museum of the Roman Legion Carleon. first half of the first century AD
Mid-to-Late First Century CE
Imperial Italic D helmet. There is a "socket" for the crest. Iron with bronze decorations. Found at the bottom of the Rhine, Mainz (Germany). City Museum of Worms. 4th quarter of the 1st century CE
Imperial Italic D helmet. There is a "socket" for the crest. Iron with bronze decorations. Found at the bottom of the Rhine, Mainz (Germany). City Museum of Worms. 4th quarter of the 1st century CE
Imperial Italic D helmet. There is a "socket" for the crest. Iron with bronze decorations. Found at the bottom of the Rhine, Mainz (Germany). City Museum of Worms. 4th quarter of the 1st century CE
Imperial Italic D helmet. There is a "socket" for the crest. Iron with bronze decorations. Found at the bottom of the Rhine, Mainz (Germany). City Museum of Worms. 4th quarter of the 1st century CE
Imperial Italic D helmet. There is a "socket" for the crest. Iron with bronze decorations. Found at the bottom of the Rhine, Mainz (Germany). City Museum of Worms. 4th quarter of the 1st century CE
Roman iron helmet. Leiden-Matilo, Leiden, Rijksmuseum voor Oudheden. Mid to late 1st century CE
Imperial Gallic D helmet. It was destroyed during the Second World War. Mid-1st century CE
A survived fragment of the Imperial Gallic D helmet. Mid-1st century CE
Imperial Gallic G helmet. It was found on the Rhenish Limes, in Germany, in the Mainz-Wiesenau area. The Museum of Worms. Mid to late 1st century AD
Imperial Gallic G helmet. It was found on the Rhenish Limes, in Germany, in the Mainz-Wiesenau area. The Museum of Worms. Mid to late 1st century AD
Auxiliary Cavalry B type helmet, "Weiler". Bronze. Mid to late 1st century.
Auxiliary Cavalry B type helmet, "Weiler". Bronze. Mid to late 1st century.
Imperial italic C helmet. Found in Po in the Soarz of Villanova d'Arda in 1895. Weights 1655 g. Courtesy Stibbert Museum, Florence. Mid to late 1st century CE
Imperial italic C helmet. Found in Po in the Soarz of Villanova d'Arda in 1895. Weights 1655 g. Courtesy Stibbert Museum, Florence. Mid to late 1st century CE
Auxiliary infantry roman helmet, type B. Bronze. Found on the Rhine near Mainz. Mainz Museum, Germany. Mid to late 1st century AD
Auxiliary infantry roman helmet, type B. Bronze. Found on the Rhine near Mainz. Mainz Museum, Germany. Mid to late 1st century AD
Vaisau helmet type, Imperial Italic. Bronze. Found in Kiel (Germany). Römisch-Germanisches Zentralmuseum - Mainz. Third quarter of the 1st century CE
Vaisau helmet type, Imperial Italic. Bronze. Found in Kiel (Germany). Römisch-Germanisches Zentralmuseum - Mainz. Third quarter of the 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. Bedriacum, Courtesy Civico Museo Ala Ponzone – Cremona-IT. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. Bedriacum, Courtesy Civico Museo Ala Ponzone – Cremona-IT. Mid to late 1st century CE
Bronze Roman helmet. Cortesia, Carnuntinum Archaeological Museum. Mid-1st century CE
Bronze Roman helmet. Cortesia, Carnuntinum Archaeological Museum. Mid-1st century CE
Bronze Roman helmet. Cortesia, Carnuntinum Archaeological Museum. Mid-1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
"Vaizau" helmet type. Bronze. The Axel Guttmann collection. Mid to late 1st century CE
Imperial Gallic C helmet. Found in the Kupa River, Croatia. Mid-1st century CE
"Vaizau" helmet type. Iron. Augsburg Museum. Mid to late 1st century CE
Imperial Gallic K helmet. Iron. Found in Wiesbaden (Germany). Municipal Museum - Wiesbaden-D. Mid to late 1st century CE
Imperial gallic C helmet. It has preserved organic traces (marten, skin and feathers). It may have been "adapted" to use for the Batavian auxilia. Burg Linn Museum. Mid to late 1st century CE
Coolus I helmet. Bronze. The helmet can be considered as a hybrid between the Haguenau model and the subsequent Weisenau model. Height 18 cm, width 30.9 cm, length 31 cm. Mid to late 1st century CE
Early to Mid-Second Century CE
Imperial italic J1 helmet. Theilenhofen. Iron with bronze inserts. First quarter of the 2nd century CE
Imperial italic J1 helmet. Theilenhofen. Iron with bronze inserts. First quarter of the 2nd century CE
Imperial italic J1 helmet. Theilenhofen. Iron with bronze inserts. First quarter of the 2nd century CE
Imperial italic J1 helmet. Theilenhofen. Iron with bronze inserts. First quarter of the 2nd century CE
Imperial Italic G helmet. Found in a cave near Hebron (Palestinian Authority, Israel). It is believed that it belonged to the legionnary from Legio X Fretensis. Early to mid 2nd century CE
Imperial Italic G helmet. Found in a cave near Hebron (Palestinian Authority, Israel). It is believed that it belonged to the legionnary from Legio X Fretensis. Early to mid 2nd century CE
Imperial Italic G helmet. Found in a cave near Hebron (Palestinian Authority, Israel). It is believed that it belonged to the legionnary from Legio X Fretensis. Early to mid 2nd century CE
Weisenau model of imperial Gallic with a crosshair reinforcement on the top of the helmet. Found in Caras Severin in Romania. Iron. Size 29.5 x 11.5 x 19 cm. Beguinning of the 2nd century CE
Iron helmet from Alba Iulia, 2nd century AD
Iron helmet from Alba Iulia, 2nd century AD
Later Second and Third Centuries CE
A helmet of the Niederbiber type from Siwach, 160 AD, is kept in the Sombor Museum
A helmet of the Niederbiber type from Rheinau-Buch, 3rd century AD, preserved in the Württemberg Landsmuseum
The Niederbiber helmet from Heddernheim, the turn of the 2nd-3rd centuries AD, is kept in the Frankfurt Archaeological Museum
Helmet type Imperial Italic H, mid-3rd century AD, private collection. The owner's name is stamped inside — Julius Mansuetus
Imperial Italic H helmet from Niedermomter, late 2nd - early 3rd century AD.Rhenish Museum of Local Lore, Bonn, Germany.
A helmet of the Niederbiber type, circa 200 AD, is kept in the Museum of North Brabant
Fourth Century CE and Later
Berksovo I helmet type. Vojvodina Museum, Serbia, 4th century
Helmet from Concesti, second half of the 4th century, State Hermitage Museum, Saint Petersburg
Berkasovo helmet, 4th century, Budapest Museum
Dernet helmet, mid-4th century, Leiden Museum
Berk'sovo helmet from Yarak. Vojvodina Museum, Serbia. 4th century
Berk'sovo helmet from Yarak. Vojvodina Museum, Serbia. 4th century
Berk'sovo helmet from Yarak. Vojvodina Museum, Serbia. 4th century
Berk'sovo helmet from Yarak. Vojvodina Museum, Serbia. 4th century