Philip the Arab

Marcus Julius Philippus, known to history as Philip the Arab, ruled as Roman emperor from 244 to 249 AD. Born in the Syrian region of the province of Arabia, he advanced through the equestrian ranks to become praetorian prefect under Gordian III during the Persian campaign. Following Gordian's death in 244 AD, Philip assumed imperial power, concluded a costly peace agreement with the Sasanian king Shapur I, and received formal confirmation from the Senate in Rome. His reign is renowned for hosting the lavish Saecular Games of 248 AD to commemorate the millennium of Rome's foundation. Philip faced severe economic strain, frontier incursions along the Danube, and mutinous provincial usurpations, culminating in his defeat and death against Decius in 249 AD.

Full Ruler History

Monetary Context

During the mid-third century AD, the Roman monetary system underwent rapid structural changes driven by relentless military expenditures and regional defense requirements. The radiate silver piece, conventionally designated the antoninianus or double denarius, had become the primary silver denomination of the empire following its reintroduction under Pupienus, Balbinus, and Gordian III. While nominally tariffed at two denarii, its metallurgical composition had steadily deteriorated since its initial creation under Caracalla in AD 215. By the accession of Philip I in AD 244, the denomination typically weighed between 3.5 and 4.5 grams with an alloy fineness fluctuating around 40 to 45 percent silver, the remainder consisting of copper and trace base metals. Issues struck in the name of the junior prince, Philip II, served both fiscal and ideological purposes, paying legions and municipal administration while communicating the stability of a new family dynasty following the sudden death of Gordian III on the eastern frontier.

Production and Mints

The entire series of RIC IV Philip I 216C is attributed to the primary imperial mint at Rome. During Philip's reign, the mint operated with a sophisticated administrative division of workshops (officinae), which were progressively tasked with balanced outputs between the senior Augustus, the Augusta Otacilia Severa, and the junior Caesar Philip II. Production utilized carefully engraved iron dies hammered manually against cast flans. Blank preparation occasionally produced irregular edges, minor flan cracking, and slight variations in module diameter, typically ranging from 21 to 24 millimeters. While Antioch operated as a significant regional mint for eastern campaigns, the stylistic treatment of the portraiture, the neat lettering, and the compositional fabric of type 216C securely link its issue to the central urban officinae of the capital.

Obverse Design and Portraiture

The obverse features the youthful portrait of Philip II as Caesar facing right. The prince is shown wearing the radiate crown, the classic indicator of the double denarius denomination, with drapery gathered over a cuirass visible at the shoulder and chest. Die cutters at Rome captured the soft features of the young prince, who was roughly seven or eight years of age when elevated to the rank of Caesar in AD 244. Over the course of the issue between AD 244 and AD 246, slight artistic shifts appear, transitioning from an idealized, child-like countenance to somewhat firmer facial modelling as the Caesar matured. Variations in the exact rendering of the cuirass ties and folds of the paludamentum reflect the hands of distinct engravers working concurrently within the Rome mint officinae.

Reverse Typology and Iconography

The reverse of RIC IV Philip I 216C portrays Philip II in full Roman military costume, standing turned toward the right. He holds an orb or globe in his outstretched right hand and balances a transverse sceptre in his left hand. The combination of military garb and symbolic regalia articulated central tenets of Roman imperial dynastic theology. The globe represented universal dominion and cosmos-wide peace secured by the imperial family, while the transverse sceptre signified authority, majesty, and divine protection. In contrast to alternate variants where the prince stands facing left, the rightward posture presents a dynamic composition emphasizing action, guardianship, and imperial progression toward full command.

Inscriptions and Epigraphy

The obverse legend reads M IVL PHILIPPVS CAES, an abbreviated form of Marcus Iulius Philippus Caesar. This formula explicitly marks the younger Philip as the designated successor without attributing him the supreme title of Augustus, which he would receive later in AD 247. The reverse legend bears the epigraphic phrase PRINCIPI IVVENT, abbreviating Principi Iuventutis (To the Prince of the Youth). Originating in the Augustan age for Gaius and Lucius Caesar, this honorific title was traditionally conferred upon the heir apparent by the equestrian order and the Roman Senate. The lettering is rendered in regular, well-proportioned Roman capitals characteristic of the central Rome mint during the mid-240s AD, lacking mintmarks or officina letters, which had not yet become standard field devices at Rome.

Typology and Chronological Sequence

In the taxonomy of the Roman Imperial Coinage, RIC IV Philip I 216 is subdivided based on minor bust drapery treatments and standing postures. Subtype 216C specifically designates the combination of the radiate, draped, and cuirassed bust right with the reverse figure of the prince standing right holding a globe and transverse sceptre. The emission commenced shortly after the proclamation of Philip I and the elevation of his son in early to mid-244 AD, continuing as a staple Caesar issue through AD 246. The series concluded when Philip II was elevated to co-Augustus in mid-247 AD, at which point coins in his name shifted to Augustus legends (such as IMP PHILIPPVS AVG) and modified reverse themes celebrating joint consular and tribunician authority.

Circulation, Hoards, and Deposition

Antoniniani of this type entered circulation in substantial volumes and dispersed throughout the empire via military pay and state expenditures. Specimens appear regularly in mid-to-late third-century coin hoards across Gaul, Britain, the Rhine frontier, and the Danubian provinces. Notable examples occur in major British and continental deposits, such as the Normanby and Dorchester hoards, which contained broad cross-sections of Gordian III and Philip I radiates. Because these coins maintained an alloy near 40 percent silver, they continued to circulate through the 250s AD until the catastrophic debasements under Valerian and Gallienus caused earlier, heavier antoniniani to be systematically culled, hoarded, or melted down in accordance with Gresham's law.

Catalog Data

Ruler
Philip the Arab
Denomination
Antoninianus
Material
Silver
Series date range

Authority and vocabulary links: Nomisma.org.

References

  1. Coin Hoards and Hoarding in the Roman Empire. pp. 145-162
  2. A Catalogue of the Roman Imperial Coins in the British Museum, Vol. VI. pp. 112-118
  3. Online Coins of the Roman Empire: RIC IV Philip I 216C. Type record ric.4.ph_i.216C
  4. The Roman Imperial Coinage, Volume IV, Part III: Gordian III to Uranius Antoninus. pp. 95-96, no. 216C