The Ada is a symbol of authority usually borne in the presence of the Ọba by a designated holder, the Omada, which translates as ‘Ada bearer’. The Ọba has almost exclusive rights to the use of the Ada, except when he permits titled chiefs, such as the Oliha, to possess one. During the Ogiso period, predating the current Ọba dynasty, the Ada is said to have been a symbol of ancestral power, with the ability to control the future (Ben-Amos 1995, p. 25). The Ada is ranked higher than the Ẹbẹn, another symbolically important ceremonial sword.

The Ewu ivie (coral bead shirt) is made of strings of coral beads. This heavy shirt was part of the ceremonial regalia worn only by a small number of high-ranking members of the palace: the Ọba, the Edaiken, the Iy’Ọba, and the Ezọmọ (Girshick Ben-Amos 1999, p. 68). The Ewu ivie would be worn along with the Odigba (coral bead collar).

The Ọba is the monarch of the Edo people and Kingdom. The current reigning monarch, Ọba Ẹwuare II, is the fortieth Ọba of the current dynasty, which is traditionally understood to have begun around 1170 AD ( ). Over the centuries, the role and conception of the monarch have shifted, and the Emwin Arre (royal treasures) and the visual language they carry provide important evidence for understanding these developments. Although Emwin Arhe served a variety of functions within court life and ritual, “their primary purpose was to glorify the godlike king and the history of the powerful empire” (Plankensteiner 2007, p. 25). Representations of the Ọba are therefore ubiquitous across Benin court arts and frequently occupy a central position within their visual language.

Representations of the Ọba can be recognised through a combination of characteristics, including his size, as he is usually depicted larger than other figures, and his position within compositions, where he may appear in front of or be supported by other figures, as in the Royal Triad motif. The Ọba is also distinguished by particular items of regalia, including the Oro projection from his crown, the distinctive beaded swag extending from his right hip, the Ewu ivie (coral-beaded shirt), and Ukpan obọ eva (crossed coral-beaded baldrics).

Since the early 20th century, scholars have sought to identify individual Ọbas represented on Emwin Arhe by analysing the regalia and other attributes of figures identified as monarchs, as well as the combinations of motifs and figures appearing on particular objects. Oral traditions and historical accounts, alongside European archival sources, have also played an important role in determining the identities of specific Ọbas (e.g., , ; ). Just as the institution of the monarchy developed and changed over time, so too did the ways in which Ọbas were represented by artists working within the royal guilds, including the Igun-Ẹrọnmwọn and Igbesamwan.

The Ukpan obọ eva (coral-bead crossed baldrics) were worn as part of the ehaingbehia, the full ceremonial regalia, by only high-ranking members of the palace, including the Ọba himself, the Iy’Ọba, the Edaiken, and the Ezọmọ (Ben-Amos 1999, pp. 68, 141; Osadolor in Plankensteiner 2007, cat. no. 70, pp. 322–323).

The Iyeọkhọkhọ (hen figures) are used by chiefs and commoners on female altars. These differ from cast brass or bronze Ọkporhu, which are only to be used on royal ancestral altars for the Iy’Ọba.

Iyeọkhọkhọ are carved in wood and usually depicted with a plump body and stylised motifs to represent the feathers. They are often painted, and on some occasions brass sheeting is overlaid on the surface. According to Seige (in Plankensteiner, 2007, p.412[17]), hens ‘symbolise maternal care and love, in particular they protect the chicks by spreading their wings over them’.

Ẹbẹn are a type of ceremonial sword of significant importance in the Benin Kingdom. During ceremonies, titled chiefs would hold them or toss them during dances, thereby paying homage to the Ọba at these public events, particularly when a chief receives a certain status. It is forbidden for Ẹbẹn to touch the ground, so the chief must take extra precautions to avoid dropping the Ẹbẹn during the dance. Therefore, the Okae-Odionmwan (head of executioners) dances with the Umozo (warfare or executioner’s sword) behind the dancing chief.

There are two central ceremonial swords used in the royal court of the Benin Kingdom, one of which is the Ẹbẹn, along with the Ada (ceremonial swords). They are distinguished by their blades: the Ẹbẹn blade reflects the shape of a leaf or an oar. Sometimes, it is decorated with openwork designs and/or brass inlays, most commonly shaped as small Ẹbẹn and Ẹkpẹn (leopards). The handle of the Ẹbẹn also has an unusual ring-shaped form, which further differentiates it from the Ada.

Odigba (coral-beaded collar) is a rigid neck collar made of coral beads, worn as part of ceremonial attire only by senior princes who have been made Enigie (Inneh 2007, p. 107). Although Ibafe (2007, p. 43) argued that the Odigba was introduced during the Ogiso period (c. 900–c. 1170 AD) by Ogiso Ere, along with other symbolically important Emwin Arhe, such as the Ada (ceremonial sword) and the Ẹbẹn (ceremonial sword), this seems unlikely, as coral was only introduced in the late 15th century through trade with Portuguese merchants.

Although many other members of the Benin royal court wore a variety of hats and forms of headwear, only the Ọba may wear the Ẹde (beaded crown). The Ọba must never be seen bare-headed, and successive Ọbas introduced different styles and types of crowns ( ).

Across different media and objects, Ọbas are depicted wearing various types of crowns, all elaborately crafted from coral beads. Some feature tall projections rising from the crown, known as Oro, while others have curved projections extending from either side of the head, known as the winged cap. The latter was introduced only in the 19th century, most likely by Ọba Osẹmwẹndẹ ( ). Depictions of Ọba Esigie on Ama-Ẹrọnmwọn (bronze relief plaques) show him wearing an elaborate crown decorated with large jasper or coral beads ( ).

The Emada (singular: Omada) are palace pages who serve the Ọba and belong to the Iwegue Palace Society. Standing at the Ọba’s side, they carry the stately Ada (ceremonial sword) during public appearances and are therefore sometimes referred to as “Ada bearers” ( ). Emada typically served the Ọba for between six and twenty years, beginning in childhood. At the end of their service, the Ọba would provide each Omada with a wife and a plot of land, formally releasing him from palace service and marking his transition into adulthood (Kaplan 2007, p. 149).

Although the institution of the Emada predates his reign, Ọba Adolo was the first to allow his palace pages to train in woodcarving. This led to the development of a distinctive carving style and visual language that differed from that of the Igbesamwan, the royal guild of wood and ivory carvers.

Emada are consistently depicted naked, signifying their unmarried status ( ; ), and are most commonly shown accompanying representations of the Ọba. In addition to carrying the Ada, they may hold Ẹzuzu (fans), used to cool the Ọba, or Ugianranran (manillas), which signal wealth and overseas trade ( ). Emada appear across several types of Emwin Arhe (royal treasures), particularly Ama-Ẹrọnmwọn (bronze relief plaques), Aken'ni Elao (carved tusks), and Urhotọ (altar tableaux).

“Only Osa and the Osuan know what is in the palm frond” (Inneh 2007, p. 113)

The title of Osa is paired with that of Osuan, and both titles were created by Ọba Ewuare I to protect the Ọba and the Edo people. The Osa worships the deity Uwen, who is associated with protection, healing, and the prevention of wounds, particularly during warfare (Inneh 2007, p. 113).

During ceremonies such as Ugie and Oduduwa, the Osa and Osuan support the Ọba on either side, a pose that is frequently reflected in the visual language of Emwin Arhe (royal treasures) (Blackmun 2007, cat. nr. 168, p. 167). Both are often depicted wearing basketry headwear with a pointed Oro projection, similar to the headwear still worn by holders of these titles today (Inneh 2007, fig. 8, p. 110).

During the Igue festival, the Osa and Osuan wrap raffia palm cloth around their waists, which “indicate[s] the deep secrecy of the inner details of the palace worship and Ugie ceremonies” (Inneh 2007, p. 113).

“Only Osa and the Osuan know what is in the palm frond” ( )

The title of Osuan is paired with that of Osa, and both were created by Ọba Ewuare I to protect the Ọba and the Edo people as a whole ( ). According to Inneh ( ), the Osuan is responsible for Ora, the deity associated with fertility. The Osuan is therefore responsible for ensuring the fecundity of the land and people of the Kingdom ( ).

During ceremonies such as Ugie and Oduduwa, the Osa and Osuan support the Ọba on either side, a pose that is frequently reflected in the visual language of Emwin Arhe (royal treasures) ( ). Both are often depicted wearing basketry headwear with a pointed Oro projection, similar to the headwear still worn by holders of these titles today ( ). The Osuan, as well as other members of the Ooton guild to which the titleholder belongs, are often depicted holding an Unwẹnrhiẹnọtan (switch) in one or both hands. This pose reflects the historical role of the Osuan during sacrificial ceremonies, when the Unwẹnrhiẹnọtan was held aloft to “fend off intrusive spirits that crowded around as the victim died” ( ).

During the Igue festival, both the Osa and Osuan wrap raffia palm cloth around their waists, which “indicate[s] the deep secrecy of the inner details of the palace worship and Ugie ceremonies” ( ).

Ẹkirẹ is the Edo term for frog ( ; Ọbazee 2025, p. 135). The Ẹkirẹ carries significant and often ambiguous symbolic importance, primarily linked to its liminal nature and association with spiritual and magical powers. As an amphibian that lives on the threshold between water and land, the Ẹkirẹ is seen as a messenger of Olokun. This connection reinforces the Ọba’s (king’s) ability to bridge the human and spiritual realms, a concept consistently present in Benin art.

While not as common as the mudfish, frogs appear on various Benin artworks, including Aken'ni Elao (carved tusks), pendant plaques, and Ẹrhẹ (royal stools). Their presence often relates to medicinal and occult practices. Frogs can be used in powerful curses, with a jumping frog signifying failure, and a frog, along with a coiled fish, used in rituals to release such curses. They are also associated with Osun, the deity of medicine, and scenes of snakes swallowing frogs can represent supernatural attacks or strong spiritual powers. For warriors, the Ẹkirẹ could even symbolise an aspect of their protective equipment and was used in palace rituals to encourage success in battle ( ).