Legatus legionis
Encyclopedia
Legatus legionis was a title awarded to legion
Roman legion
A Roman legion normally indicates the basic ancient Roman army unit recruited specifically from Roman citizens. The organization of legions varied greatly over time but they were typically composed of perhaps 5,000 soldiers, divided into maniples and later into "cohorts"...

 commanders in Ancient Rome
Ancient Rome
Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

.

History

By the time of the Roman Republic
Roman Republic
The Roman Republic was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 508 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and...

, the term legatus
Legatus
A legatus was a general in the Roman army, equivalent to a modern general officer. Being of senatorial rank, his immediate superior was the dux, and he outranked all military tribunes...

delegated authority (usually a consul
Consul
Consul was the highest elected office of the Roman Republic and an appointive office under the Empire. The title was also used in other city states and also revived in modern states, notably in the First French Republic...

 or proconsul
Proconsul
A proconsul was a governor of a province in the Roman Republic appointed for one year by the senate. In modern usage, the title has been used for a person from one country ruling another country or bluntly interfering in another country's internal affairs.-Ancient Rome:In the Roman Republic, a...

). Julius Caesar
Julius Caesar
Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

 made wide use of the title throughout the Gallic Wars
Gallic Wars
The Gallic Wars were a series of military campaigns waged by the Roman proconsul Julius Caesar against several Gallic tribes. They lasted from 58 BC to 51 BC. The Gallic Wars culminated in the decisive Battle of Alesia in 52 BC, in which a complete Roman victory resulted in the expansion of the...

.

From Augustus
Augustus
Augustus ;23 September 63 BC – 19 August AD 14) is considered the first emperor of the Roman Empire, which he ruled alone from 27 BC until his death in 14 AD.The dates of his rule are contemporary dates; Augustus lived under two calendars, the Roman Republican until 45 BC, and the Julian...

, the emperor gave the title of legatus legionis to senior commanders (former Tribune
Tribune
Tribune was a title shared by elected officials in the Roman Republic. Tribunes had the power to convene the Plebeian Council and to act as its president, which also gave them the right to propose legislation before it. They were sacrosanct, in the sense that any assault on their person was...

s) of a legion, except in Egypt
Egypt
Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

 and Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

, where the legions were commanded by a praefectus legionis of an equestrian rank. The legatus legionis was under the supreme command of Legatus Augusti pro praetore
Legatus Augusti pro praetore
A legatus Augusti pro praetore was the official title of the governor of some imperial provinces of the Roman Empire during the Principate era, normally the larger ones or those where legions were based...

 of senatorial rank. If the province was defended by a single legion, the Legatus Augusti pro praetor was also in direct command of the legion.

A legatus legionis could order capital punishment
Capital punishment
Capital punishment, the death penalty, or execution is the sentence of death upon a person by the state as a punishment for an offence. Crimes that can result in a death penalty are known as capital crimes or capital offences. The term capital originates from the Latin capitalis, literally...

.

The senatorial legatus legionis was removed from the Roman army by Gallienus
Gallienus
Gallienus was Roman Emperor with his father Valerian from 253 to 260, and alone from 260 to 268. He took control of the Empire at a time when it was undergoing great crisis...

, who preferred to entrust the command of a legionary unit to a leader
Leadership
Leadership has been described as the “process of social influence in which one person can enlist the aid and support of others in the accomplishment of a common task". Other in-depth definitions of leadership have also emerged.-Theories:...

 chosen from within the equestrian order who had a long military career.

This post generally lasted 3 or 4 years, but could be much longer. A legatus legionis was usually from a wealthy or important family.

In popular culture

The book Voluptas by Jonathan Shane O'Brien contains a character, Vincent, who is a legatus legionis.

The book When the Eagle Hunts
When the Eagle Hunts
When the Eagle Hunts is a 2002 novel by Simon Scarrow, set in 44 AD during the Roman invasion of Britain. It is the third book in the Eagle Series.-Plot summary:...

by Simon Scarrow
Simon Scarrow
Simon Scarrow is a UK-based author, born in Nigeria and now based in Norfolk. He completed a master's degree at the University of East Anglia after working at the Inland Revenue, and then went into teaching as a lecturer, firstly at East Norfolk Sixth Form College, then at City College Norwich.He...

 features General Vespasian
Vespasian
Vespasian , was Roman Emperor from 69 AD to 79 AD. Vespasian was the founder of the Flavian dynasty, which ruled the Empire for a quarter century. Vespasian was descended from a family of equestrians, who rose into the senatorial rank under the Emperors of the Julio-Claudian dynasty...

(who became Emperor in 69 A.D.), when he served as legatus legionis in Britain.
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