Historical Context

Bahram I (Middle Persian: Warahrān / Wahram I; New Persian: Bahrām) was the fourth King of Kings (Šāhān Šāh) of the Sasanian Empire. In the trilingual inscription of his father, Shapur I, at the Ka'ba-ye Zartosht (ŠKZ), Bahram is recorded as the ruler of the Caspian province of Gilan, bearing the dynastic title Gēlānšāh. His placement at the head of the royal princes indicates that he was Shapur I's eldest surviving son. However, upon Shapur's death (ca. 270/272 CE), succession bypassed Bahram in favor of his younger brother Hormizd I (Ohrmazd I), whose reign concluded after approximately one year.

Bahram I ascended the throne with the political support of the Zoroastrian clergy, led by the high priest Kartir (Kerdīr), and factions of the high nobility. This accession passed over another brother, Narseh, who governed Armenia as Wuzurg Šāh Arminān ("Great King of Armenia"). Narseh appears to have viewed the succession as irregular, establishing a dynastic friction that culminated two decades later in 293 CE when Narseh seized the throne from Bahram I's grandson, Bahram III.

Bahram I's regnal dates remain divided between two primary scholarly chronologies: historical and epigraphic reconstructions following Walter B. Henning place his reign between June 271 and September 274 CE, whereas modern numismatic frameworks, including the Sylloge Nummorum Sasanidarum (SNS II), place it ca. 273–276 CE. Domestically, his reign marked an intensification of religious orthodoxy; the prophet Mani was imprisoned and died or was executed at Gundeshapur in 274 CE. In external relations, Bahram sent auxiliary contingents to support Queen Zenobia of Palmyra against Rome. The Roman emperor Aurelian planned a retaliatory campaign against the Sasanian state but was assassinated in Thrace in 275 CE, averting war.

Within the imperial currency system, gold dinars (dēnār, derived from the Roman denarius aureus) functioned primarily as prestige and ceremonial issues rather than commercial currency. Produced in minimal volumes compared to the vast silver drahm output, gold dinars served as diplomatic presentations, imperial gifts, and accession donatives. Their weight standard of approximately 7.2 to 7.4 grams directly mirrored the contemporary Roman imperial aureus.

Obverse Iconographic Composition

The obverse displays a draped, right-facing royal bust of Bahram I executed in high relief within a single circular linear border:

  • Radiate Crown: In Sasanian royal ideology, crowns functioned as distinct theological badges representing the monarch's individual xwarrah (divine royal glory). Bahram I adopted a radiate crown comprising vertical, triangular rays mounted upon a diadem band. Numismatists associate these solar rays with the yazatas Mithra (divine contract and sunlight) and Verethragna (the deity of victorious assault, from whom Bahram took his name). The crown incorporates protective earflaps (paragoda) and is surmounted by a globe of gathered fabric or hair (korymbos). Two pleated diadem ribbons extend from the rear of the diadem band, floating upward into the field.
  • Royal Portraiture: Conforming to early imperial Sasanian court art, the king is portrayed with naturalistic modeling, a neatly curled beard gathered at the chin, a trimmed horizontal mustache, and a dense cluster of wavy hair resting on the far shoulder. The sovereign wears a pearl earring and a double-strand beaded necklace framing an embroidered imperial tunic.

Obverse Epigraphy and Inscriptions

The obverse legend is rendered in Inscriptional Pahlavi, the official epigraphic script of the early Sasanian court, commencing at approximately 11:00 and running clockwise along the flan perimeter.

  • Transliteration: mzdysn bgy wrhr'n MRKAn MRKA 'yr'n W 'nyr'n MNW ctry MN yzd'n(y)
  • Translation: "The Mazda-worshipping Lord Bahram, King of Kings of the Iranians and non-Iranians, whose lineage is of the gods."

Epigraphic and Morphological Breakdown

  • mzdysn (mazdēsn): Middle Persian adjective meaning "Mazda-worshipping."
  • bgy (bay / bag): Title signifying "Lord" or "divine majesty."
  • wrhr'n (Warahrān / Wahram): The king's theophoric personal name.
  • MRKAn MRKA (šāhān šāh): Aramaic heterogram (malkān malkā) denoting "King of Kings."
  • 'yr'n (Ērān): "of the Iranians" or "of Iran."
  • W (ud): Aramaic conjunction heterogram meaning "and."
  • 'nyr'n (an-Ērān): "of the non-Iranians" or "of non-Iran," reflecting the expanded imperial universalism instituted under Shapur I.
  • MNW (kē): Aramaic relative pronoun heterogram meaning "who" or "whose."
  • ctry (čihr): Noun meaning "seed," "origin," or "spiritual lineage."
  • MN (az): Aramaic prepositional heterogram meaning "from" or "of."
  • yzd'n(y) (yazdān): "the gods" or "divine beings."

(Note: Primary numismatic corpora record these legends via Latin transliteration; direct Inscriptional Pahlavi Unicode typesetting is withheld pending direct examination of confirmed epigraphic type matrices).

Reverse Iconographic Composition

The reverse design marks a formal return to the monumental static fire altar schema introduced under Shapur I, setting aside the dynamic personal investiture tableau used on the coinage of Hormizd I:

  • The Fire Altar (Ādur / Ātaxš): The center of the flan is dominated by a Zoroastrian fire altar set upon a three-tiered stepped base. A vertical central column supports an altar table consisting of three inverted steps, upon which burns the sacred fire with stylized, leaping flames reaching toward the upper border. On specific workshop dies, isolated pellets or ribbons adorn the column shaft or flanks of the flames.
  • The Flanking Attendants: Two figures in royal court attire stand in solemn vigil on baseline plinths flanking the altar. Both attendants face outward, looking away from the sacred flame, and rest both hands upon the hilt or pommel of a long grounded staff or scepter.
  • Attendant Headgear Variations: The figure to the left consistently wears Bahram I's personal radiate crown surmounted by the korymbos. The headgear of the right-hand figure varies according to workshop and die: it may appear as a radiate crown with an ungathered hair-ball, a crenellated mural crown, or a crown surmounted by a korymbos.

Reverse Epigraphy and Inscriptions

The reverse inscription is arranged vertically in the lateral fields, flanking the central altar column and attendants:

  • Placement: NWRA ZY descends vertically in the right field at 4:00; wrhr'n descends vertically in the left field at 9:00.
  • Language and Script: Middle Persian in Inscriptional Pahlavi.
  • Transliteration: NWRA ZY wrhr'n
  • Translation: "Fire of Bahram."

Epigraphic Analysis

  • NWRA (ādur / ātaxš): Aramaic heterogram (nūrā) identifying the consecrated royal fire ignited at the monarch's accession and maintained as the spiritual anchor of his reign.
  • ZY (ī): Aramaic relative particle heterogram functioning as the Middle Persian izāfe marker ("of").
  • wrhr'n (Warahrān): The personal name of the monarch, grammatically linked to the sacred fire.

Typology and Documented Variants

Bahram I's gold coinage is catalogued across two major analytical frameworks:

Göbl Typology (1971)

Robert Göbl established a single baseline type for Bahram I's gold and silver coinage:

  • Type I/1: Obverse bust right with radiate crown and korymbos; reverse fire altar flanked by two outward-facing attendants holding scepters.

Sylloge Nummorum Sasanidarum (SNS II) Classification

Michael Alram and Rika Gyselen systematized the series by distinguishing stylistic workshop traditions and attendant crown variants:

  • Style A (Central Workshop): Characterized by refined, classical die engraving, conventionally linked to the imperial court. An example is SNS II Type I(1)/2A(1a), where both attendants wear crowns surmounted by a korymbos, with pellets flanking the altar column.
  • Style B (Secondary Workshop / Stylistic Variant): Displays distinct drapery treatment and divergent attendant headgear. A primary comparative reference is British Museum IOC.430 (SNS II Type I(1)/1bb(1a), Pl. 7, A17; 22 mm, 7.29 g, 3h), on which the left attendant wears the radiate crown with korymbos, the right attendant wears a radiate crown with a hair-ball, and a pellet appears on each side of the altar flames.
  • Style G (Eastern Workshop – Merv): A rare eastern regional emission bearing an explicit mint signature in Inscriptional Pahlavi, reading mlwy (Marw / Merv), positioned in the upper right field beside the flames. The left attendant wears a mural crown while the right attendant wears the radiate crown with korymbos. A documented specimen appears in the Sunrise Collection (no. 762; 21 mm, 7.17 g; SNS PBW2 Type I(1)/1aαb(1a)).
  • Styles incertains et indéterminés (Undetermined / Provincial Styles): Subtypes demonstrating distinct provincial styling or transitional die combinations, such as the specimen sold in CNG Feature Auction 133, Lot 437 (SNS Type I(1)/1bb; 21 mm, 7.36 g, 3h; left attendant in radiate crown with korymbos, right attendant in crown with rays).

Scholarly Debates and Attribution Limitations

1. Chronological Divergence

Historical sources (such as al-Tabari) record Bahram I's reign as lasting three years, three months, and three days. Two chronological models remain in scholarly use:

  • Henning / Shahbazi Chronology: Places the reign between June 271 and September 274 CE based on Manichaean documentary dates and epigraphic synchronisms.
  • SNS II / Modern Numismatic Chronology: Sets the reign ca. 273–276 CE, aligning with revisions to Shapur I's death date (ca. 270/272 CE) and Hormizd I's intervening rule. Exact calendar alignments remain open to scholarly reassessment.

2. Symbolic Identity of Reverse Attendants

The figures flanking the fire altar have generated several interpretations:

  • Royal Double / Dynastic Heir: Robert Göbl and Michael Alram proposed that the figures represent either the reigning monarch duplicated in dual vigil or the king alongside his designated crown prince (the future Bahram II).
  • Royal Ancestor Theory: Some commentators suggested the attendant wearing a mural crown represents Bahram I's father, Shapur I. However, historians have noted that early Sasanian rulers rarely relegated past monarchs to subordinate guard roles beside an accession fire.
  • Divine Personifications: A third hypothesis views the attendants as royal guardian spirits (frawahr) or theophoric personifications protecting the dynastic flame.

3. Mint Localization Boundaries

With the exception of the rare Merv issues signed mlwy, third-century Sasanian gold dinars do not include explicit mint abbreviations. Assigning Style A to Ctesiphon and Style B to secondary centers (such as Hamadan) remains an attributed stylistic convention rather than an established archaeological fact. In modern cataloguing (SNS II), these groupings are classified as stylistic workshop traditions rather than dogmatically mapped cities.

4. Kushano-Sasanian Differentiation

Imperial gold dinars of Bahram I must be distinguished from the later gold dinars struck under the Kushano-Sasanian ruler Bahram I Kushanshah (ca. 330–365 CE; Göbl MK 748). Kushano-Sasanian issues are broad, scyphate (concave) flans (28–34 mm, ~7.8–8.0 g) portraying a standing king at an altar on the obverse and the deity Oesho with the bull Nandi on the reverse, inscribed in cursive Bactrian script. Imperial Sasanian dinars are compact, flat flans (21–22 mm, ~7.2–7.4 g) bearing Middle Persian Inscriptional Pahlavi legends.

References

  1. British Museum Collection Database: Museum number IOC.430. Gold dinar of Bahram I, India Office Collection transfer (1882); 22 mm, 7.29 g, 3h; SNS II Style B (Pl. 7, A17)
  2. Encyclopaedia Iranica: Bahrām I (A. Shapur Shahbazi, 1988). Vol. III, Fasc. 5, pp. 514–522; regnal chronology, ŠKZ inscription, Kartir alliance, and execution of Mani
  3. Sylloge Nummorum Sasanidarum: Paris – Berlin – Wien. Band II: Ohrmazd I. – Ohrmazd II. (Michael Alram and Rika Gyselen, 2012). Vienna: Verlag der ÖAW; pp. 191–205, Pl. 7; typology of Style A, Style B, Style G (Merv), and undetermined styles
  4. CNG Feature Auction 133 Catalog (15–16 September 2026), Lot 437. Lot 437: Vahrām (Bahram) I AV Dinar (21 mm, 7.36 g, 3h), SNS type I(1)/1bb
  5. Numismatic Art of Persia: The Sunrise Collection, Part I (Bradley R. Nelson, ed., 2011). Lancaster, PA: CNG; no. 754 (Style B dinar) and no. 762 (Merv signed mlwy, 21 mm, 7.17 g)
  6. Sasanian Numismatics (Robert Göbl, 1971). Braunschweig: Klinkhardt & Biermann; Type I/1, p. 43, Pl. 3