Roman cavalry (Latin language: equites Romani) refers to the horse-mounted forces of the Roman army throughout the Roman Kingdom, Roman Republic, and Roman Empire eras.
In the regal era, the Roman cavalry was a group of 300 soldiers called celeres, tasked with guarding the Kings of Rome. Later their numbers were doubled to 600, then possibly 1,800. All of the cavalrymen were patricians. In the republican era, the general name for the cavalry was equites and these united consisted of the equestrian class and the first class, with a group of 300 cavalrymen in every legion. They were divided into 10 groups of 30 men. Each group elected three leaders known as decuriones. Later the Roman cavalry stopped using Roman citizens as cavalrymen and relied on Auxilia and foreign recruits.
Roman cavalrymen wore a Corinthian helmet, Breastplate, and bronze Greave Later Chain mail was adopted into the army. Their arms included a lance ( lancea), a long sword ( spatha), and a short throwing spear.
Historians such as Philip Sidnell argue that the Roman cavalry was a crucial part of the republican army. However, other historians bring up defeats such as Cannae and Trebia as evidence against this claim. Cavalry tactics included fighting the enemy cavalry first, then attacking the enemy army from multiple directions to distract the commander and break their defensive line. In the Late Empire light cavalry and Mounted archery were used for Skirmisher. The traditional Roman cavalry rode small pony-sized horses around 14 hands high.
The royal cavalry may have been drawn exclusively from the ranks of the patricians ( patricii), the aristocracy of early Rome, which was purely hereditary,Cornell (1995) 245 although some consider the supporting evidence tenuous.Cornell (1995) 250. Since the cavalry was probably a patrician preserve, it probably played a critical part in the overthrow of the monarchy. Indeed, Alfoldi suggests that the coup was carried out by the Celeres themselves.Cornell (1995) 238, 446 note 32 However, the patrician monopoly on the cavalry seems to have ended by around 400 BC, when the 12 centuriae of equites additional to the original six of regal origin were probably formed. Most likely patrician numbers were no longer sufficient to supply the ever-growing needs of the cavalry. It is widely agreed that the new centuriae were open to non-patricians, on the basis of a property rating.Online 1911 Encyclopædia Britannica Equites
According to the ancient Greek historian Polybius, whose Histories (written ca. 140s BC) is the earliest substantial extant account of the Republic, Roman cavalry was originally unarmoured, wearing only a tunic and armed with a light spear and ox-hide shield which were of low quality and quickly deteriorated in action.Polybius I.
As hoplite warfare was the standard early in this era, cavalry might have not played a substantial role in battle except for chasing after routed enemies.
Similar uncertainty exists as to whether cavalrymen carried shields, despite the fact that many Roman military tombstones depict equites with oval shields on the left side of their horses (not generally used by Greek cavalry until after ca. 250 BC) and the related question of whether they carried long lances or shorter spears, the doru mentioned by Polybius.Sidnell (2006)160 Most representations show cavalrymen with the parma equestris, a flat type of shield, but the Ahenobarbus monument of 122 BC and the coin of 136 BC both show cavalrymen without shields. Sidnell suggests that since equites were expected to provide their own equipment they may have chosen their own type and combination of armour and weapons (e.g., long lance with no shield or short spear with shield), but the evidence is too scant to draw any firm conclusions. Before the invention of full plate armour in the High Middle Ages, all combatants would carry shields as a vital piece of equipment.
Pictorial evidence, such as the stele of Titus Flavius Bassus (eques of the ala Noricum) or Tomb monument of a cavalryman from 1st century AD (Romano-Germanic Museum, Cologne Germany) supports literary accounts that equites carried swords, such as the spatha, which was much longer than gladius (Spanish swords) used by the infantrySidnell (1995) 161. The Ahenobarbus monument also shows a cavalryman with a dagger ( pugio). There is no evidence that equites carried bows and arrows and the Romans probably had no mounted archers before they came into contact with Parthian Empire forces after 100 BC.
Other examples include the Equites' victory over the vaunted Gallic horse at Telamon, and Sentinum, against the Germanic cavalry of the Teutons and Cimbri at Vercellae, and even against the technologically more advanced Seleucid army (including fully armored ) at Magnesia. Contrary to the popular depiction that the legionary infantry were the primary battle winning force of the Roman army, these encounters were primary decided by the success of the Roman cavalry, who crushed the enemies' mounted forces before falling on the flanks of their infantry. At the Clastidium the Roman cavalry were even able to triumph unaided against superior numbers of Gallic foot soldiers and horsemen, showing their ability when properly led.
A key reason for some historians' disparagement of the Roman cavalry were the crushing defeats at the Trebia and at Cannae, that it suffered at the hands of the Carthaginian general Hannibal during the latter's invasion of Rome (218-6 BC), which were only rendered possible because of a powerful cavalry force. But Sidnell argues that this is only because of a consistent numerical superiority in cavalry. Another disadvantage for the Romans in the Second Punic War was that their respective cavalry were melee cavalry better suited for combating enemy melee cavalry and engaging the rear and flanks of infantry formations. This, however useful and effective against the Romans' regular opponents, failed against Hannibal's nimble Numidian cavalry, whose use of skilful hit and run tactics exasperated the Roman cavalry who were unable to come to grips with them.
Nevertheless, on those occasions during the Second Punic War when they were deployed properly, led competently, and/or had the advantage of numbers or surprise, such as during the skirmish before Ilipa and at the pitched battles of the Great Plains and Zama, the Roman cavalry were able to best their Carthaginian counterparts, independent of the success of their own allied Numidians. On occasion, such as at Dertosa, they were able to hold their own despite being supposedly outnumbered in a skirmish with Carthaginian cavalry.
The Second Punic War placed unprecedented strains on Roman manpower, not least on the over 10,000+ drachmae First Class, which provided the cavalry. During Hannibal's march through Italy (218-6 BC), thousands of Roman cavalrymen were killed on the battlefield. The losses were especially serious for the knights properly so-called ( equo publico): Livy relates how, after Cannae, the gold rings of dead Roman knights formed a pile one modius (ca. 9 litres) large.Livy XXIII.12 In the succeeding years 214-203 BC, the Romans kept at least 21 legions in the field at all times, in Roman territories (and 25 legions in the peak year).Brunt (1971) 418 This would have required the knights to provide 220 senior officers (120 tribuni militum, 60 decuriones and 60 praefecti sociorum). It was probably from this time that the 18 centuriae of knights became largely an officer class, while the 6,300 Roman cavalrymen required were raised from the rest of the First Class.
The cavalry of Roman armies before the Second Punic War had been exclusively Roman and allies, with each holding one wing of the battleline (the Romans usually holding the right wing). After that war, Roman cavalry was always complemented by allied native cavalry (especially Numidian cavalry), and was usually combined on just one wing. Indeed, the allied cavalry often outnumbered the combined Roman force, e.g. at Zama, where the 4,000 Numidians held the right, with just 1,500 Romans on the left.Livy XXX.29 One reason was the lessons learnt in the war, namely the need to complement heavy cavalry with plenty of light, faster horse, as well as increasing the cavalry share when engaging with enemies with more powerful mounted forces. It was also inevitable that, as the Roman Republic acquired an overseas empire and the Roman army now campaigned entirely outside Italian peninsula, the best allied cavalry would be enlisted in increasing numbers, including (in addition to Numidians) Gallic, Spanish and Thracian horse.Sidnell (2006) 208 Towards the end of the Republic and the beginning of the Empire, the Roman cavalry itself was rendered less and less of a powerful force, with Rome meeting its cavalry needs with auxiliary, allied cavalry instead.
Nevertheless, Roman and allied cavalry continued to form an essential part of a Roman army's line-up for over a century. They were again, less successful against elusive tribal cavalry, such as the Lusitanians under Viriathus in their bitter resistance to Roman rule (151-140 BC) and the Numidians themselves under king Jugurtha during the latter's rebellion (112-105 BC), when they were obliged to rely heavily on their own Numidian allied horseSidnell (2006) 197-205 and the Romans were deprived of their strongest cavalry.
It also appears that from this time onwards, Roman knights were no longer levied for cavalry service, which was now recruited from commoners.Keppie (1996) 272 By the time of Julius Caesar's Gallic Wars (58–50 BC), it appears that legionary cavalry may have disappeared altogether, and that Caesar was entirely dependent on allied Gallic contingents for his cavalry operations.Goldsworthy (2000) This is deduced from an incident in 58 BC when Caesar was invited to a parley with the German king Ariovistus and needed a cavalry escort. Since he didn't yet trust the allied Gallic cavalry under his command, he instructed them to lend their horses to some members of the Tenth Legion, which thereafter acquired the nickname equestris ("mounted legion").Caesar De Bello Gallico I.42 (However, this incident leaves open the possibility that Roman cavalry still existed, but was not large enough to satisfy the needs of the moment).
The question arises as to why the Romans allowed their citizen cavalry to lapse in this way, given its record as a highly effective and useful force. The main reason is probably the limited pool of available equites and First Class members. The equites had long since become exclusively an officer class (a role they retained throughout the Principate), as the empire had become simply too large and complex for aristocrats to serve as ordinary troopers. At the same time, many of the First Class of commoners had developed major business interests and had little time for military service. Although commoners of the lower classes could, of course, have been recruited and trained as cavalrymen in larger numbers, that must have seemed costly and unnecessary when subject countries such as Gaul, Spain, Thrace and Numidia contained large numbers of excellent native cavalry which could be employed at much lower pay than citizens.
Augustus also made a regular Auxilia corps of non-citizen soldiers. These professional Roman soldiers, like the Legions, were subjects recruited from the non-citizens in provinces controlled by Rome that had strong native cavalry traditions. These men, unlike the allied foederati cavalry, were a regular part of the Roman army and were paid and trained by the Roman State. Arrian describes them as well-equipped and performing well-executed manoeuvres. A typical cavalrymen of the ala would be paid 20 percent more than a typical citizen legionary. Roman Auxilia cavalry were usually heavily armored in mail and armed with a short lance, javelins, spatha long swords and sometimes bows for specialist horse archer units. These men primarily served as medium missile cavalry for flanking, scouting, skirmish, and pursuit. As opposed to more modern cavalry units where the horses were kept in stables separate from the riders, Roman cavalry housed the riders and horses in the same barracks.
By the time of the 3rd century, the Constitutio Antoniniana granted all peoples citizenship rights, and citizen cavalry was in use technically. Gallienus in 260 created a mobile reserve cavalry corps to respond to the empire's threats. Responding to Persian cavalry known as the Grivpanvar, large numbers of heavily armored cavalry units such as cataphractarii and clibinarii started to appear by the 4th century. These units were armed with a large spear, a sword and a bow. However, the primary strength of the Roman army remained the infantry.
Although Augustus created regular auxiliaries, irregular allied forces were still used. For example, Marcus Aurelius recruited Sarmatian allied cavalry to be stationed in Britain. By the 4th century, Romans relied heavily on irregular allies from the migrating Germanic tribes and the Huns.
Roman cavalry did not have stirrups. The device was introduced to Europe by invading tribes, though it is not known which in particular, after the collapse of the Western Roman Empire.
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