Magister militum (
Latin for "Master of the Soldiers") was a top-level military command used in the later
Roman Empire, dating from the reign of
Constantine. Used alone, the term referred to the senior military officer (equivalent to a war theatre commander, the emperor remaining the supreme commander) of the Empire.
Establishment and development of the office
The title of
magister militum was created in the 4th century, when Emperor
Constantine the Great deprived the
praetorian prefects of their military functions. Initially two posts were created, one as head of the foot troops, as the
magister peditum ("Master of the Foot"), and one for the more prestigious horse troops, the
magister equitum ("Master of the Horse"). The latter title had existed since Republican times, as the second-in-command to a
Roman dictator. Under Constantine's successors, the title was also established at a territorial level:
magistri peditum and
magistri equitum were appointed for every
praetorian prefecture (
per Gallias,
per Italiam,
per Illyricum,
per Orientem), and, in addition, for
Thrace and, sometimes,
Africa. On occasion, the offices would be combined under a single person, them styled
magister equitum et peditum or
magister utriusquae militiae ("master of both forces (foot and horse)"). As such they were directly in command of the local mobile field army of the
comitatenses, composed mostly of cavalry, which acted as a
rapid reaction force. Other
magistri remained in the immediate disposal of the Emperors, and were termed
in praesenti ("in the presence" of the Emperor). By the late 4th century, the regional commanders were termed simply
magister militum.
In the Western Empire, a "commander-in-chief" was sometimes appointed in the form of the magister utriusquae militiae. This powerful office was often the power behind the throne and was held by commanders like Stilicho, Ricimer and others. In the East, there were two senior generals, who were appointed to the office of magister militum praesentalis. During the reign of Emperor Justinian I, with the increasing military threats and the expansion of the Eastern Empire, three new posts were created: the magister militum per Armeniam in the Armenian provinces, formerly part of the jurisdiction of the magister militum per Orientem, the magister militum per Africam in the reconquered African provinces (534), with a subordinate magister peditum , and the magister militum Spaniae (ca. 562).
In the course of the 6th century, internal and external crises in the provinces often necessitated the temporary union of the supreme regional civil authority with the office of the magister militum. In the establishment of the exarchates of Ravenna and Carthage in 584, this practice found its first permanent expression. Indeed, after the loss of the eastern provinces to the Muslim conquest in the 640s, the surviving field armies and their commanders formed the first themata.
The title was sometimes also used in early medieval Italy for supreme military commanders, such as the Papal States and Venice, whose Doge claimed to be the successor to the Exarch of Ravenna.
List of magistri militum
Unspecified commands
- ca. 347: Flavius Eusebius, magister utriusquae militiae
- 349-359: Ursicinus, magister equitum under Constantius
- 359-360: Sabinianus, magister equitum under Constantius
- 363-367: Lupicinus, magister equitum under Jovian and Valens
- 371-378: Iulius, magister equitum et Peditum under Valens
- 383: Flavius Richomeres, magister equitum et peditum
- 383-388: Ellebichus, magister equitum et peditum
- 392: Eutherius, magister equitum et peditum
- 393-396: Addaeus, magister equitum et peditum
- 460s-471: Flavius Ardabur Aspar
- 483-488: Flavius Theodoricus
- c.503-505: Areobindus Dagalaiphus Areobindus
- 377-378: Flavius Saturninus, magister equitum under Valens
- 377-378: Traianus, magister peditum under Valens
- 378: Sebastianus, magister peditum under Valens
- 382-383: Flavius Saturninus, magister peditum under Valens
- 380-382: Flavius Saturninus, magister equitum under Theodosius I
- 382-383: Flavius Saturninus, magister equitum under Theodosius I
- 392-393: Flavius Stilicho, magister equitum et peditum
- 441: Ioannes the Vandal, magister utriusque militiae
- 468-474: Armatus
in praesenti
- 351-361: Flavius Arbitio, magister equitum under Constantius
- 361-363: Flavius Nevitta, magister equitum under Julian
- 363-379: Victor, magister equitum under Valens
- 366-378: Flavius Arinthaeus, magister peditum under Valens
- 364-369: Flavius Iovinus, magister equitum under Valentinian I
- 364-366: Dagalaifus, magister peditum under Valentinian I
- 367-372: Severus, magister peditum under Valentinian I
- 369-373: Flavius Theodosius, magister equitum under Valentinian I
- 375-388: Flavius Merobaudes, magister peditum under Valentinian I, Gratian and Magnus Maximus
- 394-408: Flavius Stilicho, magister equitum et peditum
- 475-477/478: Armatus
- 546-548: Artabanes
- 585-?: Comentiolus
per Africam
- 373-375: Flavius Theodosius, magister equitum
- 386-398: Gildo, magister equitum et peditum
Magistri militum in Byzantine and medieval Italy
Venice
References
Sources