Legio II Parthica ) was founded in AD 197 by the emperor Septimius Severus, together with the legio I Parthica , in preparation for his campaign against the Parthian Empire, the third of the four pre-Islamic Persian empires.
The Lagio I Italica was founded by the emperor Nero in 66.
The Legio I MInervia was founded by the emperor Domitian in 82
The Legio I Parthica army founded by the emperor Septimius Severus in 197 fin preparation for his war against Parthian Empire (the Third of the four pre-Islamic Persian empires). It remained stationed in the Middle East is recorded until the early 5th century and participated in other wars between the Romans and the Persians,
The Legio III Parthica is the least known legion. It was founded by the emperor Septimius Severus in 197 together with the I Parthica and the II Parthica in preparation for his campaign against Parthian Empire (the third of the four Pre- Islamic Persian empires). Severus was successful, the Parthian capital, Ctesiphon was sacked and Mesopotamia (Iraq) was annexed to the Roman Empire. The I Parthica and III Parthica were then stationed in Mesopotamia. The III Parthica was based at Rhesaena on the Upper Chaboras (modern Khabur) where it controlled the road between the former Arabian principalities Edessa and Nisibis. It must have taken part in the campaigns of Caracalla and his successor Macrinus (217), and the war of Severus Alexander against the new Sasanian Persian empire. In 230 the Sasanians invaded the Roman empire and installed an emperor in Emessa (Syria). Severus Alexander retook Syria and invaded Iraq. In 243 this war was renewed and the Legio III, defeated the Sassanians at Rhesaena. In 244 Gordian III invaded Mesopotamia again, but he died and was succeeded by Philip the Arab, who owed his succession to the Sasanian king Shapur I. In 256 Shapur I captured Satala, the fortress of the Legio XV Apollinaris in northenr Mesopotamia, and two years later he reached the Black Sea and sacked Trapezus. the emperor Valerian invaded Mesopotamia, he was defeated and captured. Odaenathus of Palmyra (261-267) and then the emperor Diocletian (284-305), restored Roman fortunes and in 298, a peace treaty was concluded in which the Sassanians had to give up northern Mesopotamia. The Legio III must have played a role during these campaigns, but we have almost no information. The Notitia Dignitatum, written at the beginning of the fifth century, recoded the Legio III Parthica as being based at Apadna in Osrhoene, near the confluence of the rivers Chaboras and Euphrates.
Legio II Traiana was founded by the emperor Trajan in 105 together with XXX Ulpia Victrix, for the campaigns in Dacia. This legion was used in Trajan's campaign against the Parthians. In the late second century it helped to defend Alexandria.
The Legio II Italica was founded by the emperor Marcus Aurelius in 165. It was stationed the Roman province of Noricum, in the mid Danube area, where Germanic incursions were frequent. This legion had the emblem of a she-wolf and twins. Originally recruits from Italy were its soldiers. One of its outstanding honors was the relief of Aquileia in 169 AD.
This legion was actually reconstituted by Vespasian
Byzantium and Etruscans and the emperor of Julius Caesar
Vespian did. He was the roman emperor then.
Constantine
It is thought that the Legio V Macedonica was founded by 43 BC by consul Gaius Vibius Pansa Caetronianus, the consul of that year and Octavian (later known as the emperor Augustus). There are no record of its first decade of existence,
The Legio XIII was not founded by an emperor. It was founded by Julius Caesar. He levied it to march against the Belgae of northern Gaul and It was the legion with which he r crossed the River Rubicund to wage his civil war against the forces of the senate. It was reconstituted by Octavian (the future Augustus to suppress the rebellion of Sextus Pompeius (son of Pompey) in Sicily.It acquired the cognomen Gemina (twin) after being reinforced with veteran legionaries from other legions after the civil war against Mark Antony.