Viriathus (also spelled Viriatus; known as Viriato in Portuguese and Spanish; died 139 BC) was the main leader of the Lusitanian people who fought against Roman expansion into the area now called Portugal, which was then named Lusitania.

Viriathus formed alliances with other Celtic groups, even those far from his usual battle areas, encouraging them to fight against Rome. He led his army, helped by most of the Lusitanian and Vetton tribes as well as other Celtic and Iberian allies, to many victories over the Romans between 147 BC and 139 BC. He was later betrayed by his allies and killed while sleeping. Theodor Mommsen said of him: "It seemed as if, in that thoroughly ordinary age, one of the Homeric heroes had reappeared."

Etymology

The name Viriathus may have several possible origins. It might be made up of two parts: "Viri" and "Athus." The word "Viri" could come from:

• An old root in many languages that meant "man," linked to strength and being a strong person;
• A Celtic word meaning "man";
• Older forms of words like "viros" or "viri," which led to the Old Irish word "fir," meaning "man";
• A term connected to "viriae," which were twisted armbands worn by warriors, as described by the writer Pliny;
• The Latin word "viri," which meant "man," "hero," or "noble person."

The name "Viri" is similar to the Welsh name "Gwriad" and might be related to the Irish name "Ferdiad."

Celtic leaders sometimes used the title "uiros ueramos," which meant "highest man." In Latin, this would be "summus vir," meaning "top man."

According to historian Schulten, Viriathus had a name that was originally used by the Celts.

Viriathus' life

Little is known about Viriathus. The only information about where his native tribe lived comes from the Greek historian Diodorus Siculus, who stated that Viriathus was from the Lusitanian tribes near the ocean.

He was part of the warrior class, which was the ruling group of the minority elite. The Romans called him the dux of the Lusitanian army, the adsertor (protector) of Lusitania, or the imperator, likely of the allied Lusitanian and Celtiberian tribes.

Livy described him as a shepherd who became a hunter, then a soldier, following the path of many young warriors, the iuventus, who focused on cattle raiding, hunting, and war.

According to Appian, Viriathus was one of the few survivors when Galba, the Roman governor, killed many young Lusitanian warriors in 150 BC.

Two years later, in 148 BC, Viriathus became the leader of a Lusitanian army.

Some believed Viriathus had an unclear background, but Diodorus Siculus noted that Viriathus claimed to be a prince and said he was "lord and owner of all." His family was unknown to the Romans, who were familiar with the native aristocratic warrior society. His personality, physical and intellectual abilities, and skills as a warrior were described by several authors. He was a man of great strength, likely in his prime, an excellent strategist, and had a sharp mind. Some sources compared him to a Celtic king.

He was known for honesty and fairness, and others respected him for keeping his promises in treaties and alliances. Livy called him "vir duxque magnus," implying he represented ancient virtues.

A more modern view suggests Viriathus belonged to an aristocratic Lusitanian clan that owned cattle. Cassius Dio wrote that he fought for military glory, not for power or wealth, similar to Roman ideals of honor. Viriathus did not seek war spoils or material gain, unlike common soldiers.

The Lusitanians honored Viriathus as their Benefactor (Greek: euergetes) and Savior (Greek: soter), titles often used for kings like the Ptolemies.

Some sources claim he was from the Herminius Mons (Serra da Estrela) in central Portugal or the Beira Alta region.

Most details about his life and his war against the Romans are considered legend. Viriathus is seen as the earliest Portuguese national hero because he led the allied tribes of Iberia who resisted Rome. Appian, in his book about Iberia, wrote that Viriathus "killed many Romans and showed great skill."

Some argue that Silius Italicus, in his poem Punica, mentioned a leader named "primo Viriatus in aeuo" who was a contemporary of Hannibal and led the Gallaeci and Lusitanians.

The historical Viriathus was called "regnator Hiberae magnanimus terrae," meaning "magnanimous ruler of the Iberian land."

Conquest of Lusitania by Rome

In the 3rd century BC, Rome began its conquest of the Iberian Peninsula. The Roman conquest of Iberia started during the Second Punic War, when the Roman Senate sent an army to Iberia to stop Carthaginian forces from helping Hannibal in Italy. This marked the start of Rome’s involvement in 250 years of fighting across Iberia, which ended in 19 BC with the conclusion of the Cantabrian Wars. The Lusitanian War is one of the best-documented events of this conquest.

Rome’s control over Iberia faced strong resistance. In 197 BC, Rome divided the southeastern coast of Iberia into two provinces, Hispania Citerior and Hispania Ulterior, and assigned two elected officials called praetors to lead the legions. Like many other tribes in Iberia, the people living in Lusitanian castros, or citanias, were given a special status called peregrina stipendiaria but remained an independent (Greek: αὐτονόμων) country through treaties (foedus).

Lusitania’s fertile land was praised by ancient writers. Polybius, in his Histories, wrote that Lusitania’s climate made both people and animals very productive, and its land was always rich in crops.

The Romans imposed heavy taxes on native tribes, including a fixed land tax called vectigal, a tax on people called tributum, and a required amount of grain. Taxes were not the only source of Roman income; mining, peace treaties, war spoils, and the sale of captured people as slaves also contributed. Native towns were forced to give their own treasures to the Romans, leaving them with only their yearly earnings to pay taxes. In 174 BC, when Publius Furius Philus was accused of paying too little grain to Rome, Cato defended the rights of the native tribes. The harsh treatment of the provinces became so extreme that Rome created special laws, such as the Lex Calpurnia in 149 BC, to address the problem.

The Lusitanians rebelled against the Romans in 194 BC. Iberia was divided between tribes that supported Roman rule and those that opposed it, just as it had been divided earlier between supporters of Carthage and Rome.

This period was marked by many broken treaties, either because Roman generals or the Senate failed to honor them, or because native people violated them.

In 152 BC, the Lusitanians made a peace agreement with Marcus Atilius after he captured Oxthracae, the largest city in Lusitania. In Roman law, peregrini dediticii was the term used for groups that surrendered after fighting against Rome. However, the terms of the treaty were so poor that the Lusitanians rebelled again soon after Atilius returned to Rome. They then attacked tribes that had allied with Rome and helped plunder Lusitanian towns, possibly reclaiming some of the stolen goods.

In 151 BC, the Celtiberians, who had become Roman allies, asked Rome to punish the rebellious tribes and keep Roman troops in Iberia to protect them from revenge.

The praetor of Hispania Ulterior, Servius Sulpicius Galba, led Roman forces in Iberia around 150 BC. At the same time, Lucius Licinius Lucullus was appointed governor of Hispania Citerior and commander of an army. In 151 BC, Lucullus, driven by a desire for fame and money, made a peace treaty with the Caucaei, a group of the Vaccaei tribe. After the treaty, he ordered his soldiers to kill all the adult males of the tribe, with only a few of 30,000 escaping.

Galba joined forces with Lucullus and began to depopulate Lusitania. While Lucullus attacked from the east, Galba struck from the south. Unable to fight on two fronts, the Lusitanians suffered heavy losses in battles with the Romans. Fearing long sieges and the destruction caused by Roman siege engines, the Lusitanians sent an embassy to Galba to negotiate a peace treaty. For the Romans, this would be seen as a surrender called Deditio in dicionem. The Lusitanians hoped to renew an earlier treaty with Atilius. Galba met the Lusitanian delegation politely and agreed to a treaty on his terms. He ordered the Lusitanians to leave their homes and live in open country. The Lusitanians likely lost their cities and possessions, and their land would have become Ager Publicus, or public land. Conquering a territory usually meant the Romans gained control of everything in it.

The treaty was a trap, similar to the one Lucullus had set for the Caucaei. When the unarmed Lusitanians, including Viriathus, gathered to hand over their weapons and be split into three groups as part of the treaty, the trap was triggered. Galba’s army surrounded them with a ditch to prevent escape. Roman soldiers then killed all the men of military age, and the survivors were sold into slavery in Gaul.

Forcing entire tribes to relocate, along with killing or enslaving them, was a punishment used by the Romans against rebellious native populations.

Galba distributed some of the plunder to his soldiers and allies, keeping the rest for himself. This action caused a massive rebellion, as the entire Lusitanian tribe united to fight Rome for three years, though they faced many defeats.

Three years after the massacre, the rebellion seemed close to failure when Viriathus emerged as a leader. By understanding Roman military tactics, he saved the rebel Lusitanians

The "War of Fire"

The war with Viriathus was called "War of Fire" by the Greek historian Polybius of Megalopolis. Viriathus used two types of warfare: bellum, which involved a regular army, and latrocinium, which included small groups of fighters using guerrilla tactics. Many authors consider Viriathus a model for guerrilla fighters.

Little is known about Viriathus until 149 BC, when he led an army of ten thousand men to invade southern Turdetania.

Rome sent the praetor Caius Vetilius to fight the rebellion. He attacked a group of Lusitanian warriors who were gathering supplies. After some were killed, the survivors fled to a location surrounded by Roman forces. They were about to agree with the Romans when Viriathus, distrustful of the Romans, proposed a plan to escape. Inspired by his speech, the Lusitanians made him their new leader. His first action was to rescue the trapped Lusitanians. He led them into battle against the Romans, then scattered the Roman army as they charged. As each group of Romans broke apart and ran in different directions to regroup later, Viriathus and 1,000 chosen men held back the Roman army of 10,000. After the rest of the Roman army fled, Viriathus and his men escaped as well. He saved all the Lusitanian soldiers and quickly gained loyalty from the people around him.

Viriathus organized an attack against Caius Vetilius in Tribola. Since the Romans had better weapons, he used guerrilla tactics and set up clever ambushes. The Lusitanians fought with iron spears and tridents while shouting loudly, defeating Vetilius and killing 4,000 of his 10,000 soldiers, including Vetilius himself. In response, the Romans hired Celtiberians to attack the Lusitanians, but the Celtiberians were defeated. Later, the Lusitanians fought against the armies of Gaius Plautius, Claudius Unimanus, and Gaius Negidius, all of whom were defeated. During this time, Viriathus inspired the Numantine people and some Gauls to rebel against Roman rule.

To finish controlling Lusitania, Rome sent Quintus Fabius Maximus Aemilianus with 15,000 soldiers and 2,000 cavalry to support Gaius Laelius Sapiens, a friend of Scipio Aemilianus Africanus. Although Aemilianus won an initial battle, he returned to Rome without defeating Viriathus. The Romans lost most of their reinforcements in battles near Ossuma and Beja in Alentejo. This allowed the Lusitanians to gain control of areas now known as Spanish regions like Granada and Murcia. Viriathus’s efforts and the Numantine War caused problems for Rome, including a drop in the number of soldiers joining the Roman legions.

Learning of these events, Rome sent Quintus Fabius Maximus Servilianus, one of its best generals, to Iberia. Near Sierra Morena, the Romans fell into a Lusitanian ambush. Viriathus did not harm the Romans and let them go in exchange for a peace treaty that recognized Lusitanian rule over the land they controlled. The Roman Senate approved the treaty, and Viriathus was declared "amicus populi Romani" (Greek: Rhômaiôn philos), meaning "ally of the Roman people."

However, the peace treaty upset Quintus Servilius Caepio, who took over from his brother, Q. Fabius Maximus Servilianus, as commander in Iberia. In his reports to the Roman Senate, Caepio claimed the treaty was deeply dishonorable to Rome. Livy, a Roman historian, wrote that the treaty was unfair to Servilianus but considered it fair overall. The Senate allowed Caepio to secretly harass Viriathus. The treaty lasted one year. During that time, Caepio pressured the Senate with reports until he was authorized to publicly declare war on Viriathus.

Death

Because the Lusitanian resistance was mostly due to Viriathus's leadership, Caepio gave money to Audax, Ditalcus, and Minurus, who had been sent by Viriathus to negotiate peace (Appian). These envoys returned to their camp and killed Viriathus while he was sleeping. Eutropius states that when Viriathus's assassins asked Quintus Servilius Caepio for their payment, he said, "It was never pleasing to the Romans that a general should be killed by his own soldiers." Another version, often shared in modern Portugal and Spain, says, "Rome does not pay traitors." The Roman Senate later refused to allow Quintus Servilius Caepio to hold a Triumph.

After Viriathus's death, the Lusitanians continued fighting under Tautalus (Greek: Τάυταλος). Eventually, Laenas granted the Lusitanians the land they had originally requested before the massacre. However, complete peace in Lusitania was not achieved until the time of Augustus. Under Roman rule, the people of Lusitania slowly adopted Roman culture and language.

Viriathus is considered the most successful leader who opposed the Roman conquest in Iberia. During his campaigns, he was defeated in battle by the Romans only once. From a military perspective, he can be regarded as one of the most effective generals who resisted Rome's expansion. In the end, even the Romans believed it was better to use betrayal rather than direct conflict to end the Lusitanian uprising. About fifty years later, the Roman general Quintus Sertorius, who led another rebellion in Iberia, faced a similar fate.

Legacy

Viriathus became an important symbol of Portuguese nationality and independence. Artists have shown him in their works, and people in Portugal and Spain have honored him for many years. In his famous poem Os Lusíadas, Luís Vaz de Camões praises Viriathus for his brave actions.

The flag of the Spanish province of Zamora, called la seña bermeja, has eight red stripes. These stripes are traditionally linked to Viriathus’s eight victories over the Romans. However, some people question if this connection is historically accurate.

There is a street in Madrid named after Viriathus, located in the Chamberí neighborhood (near the metro station Iglesia). This is also true in Lisbon, Zamora, and many other towns in Spain and Portugal.

The planet HD 45652 b was named Viriato in 2019, in honor of Viriathus.

In the comic Asterix in Lusitania, Viriathus, known in Portuguese as Viriato, is shown as a shepherd who became a military leader fighting against the Romans during the Lusitanian Wars.

• In the Portuguese film No, or the Vain Glory of Command (1990), directed by Manoel de Oliveira, a Portuguese lieutenant tells stories about Portugal’s military history to his soldier during the Portuguese Colonial War (1961–1974). Luís Miguel Cintra played the role of Viriathus.
• The Spanish television series Hispania, la leyenda (2010–2012) is loosely based on Viriathus’s life and achievements. Roberto Enríquez portrayed him.
• The History Channel’s Barbarians Rising (2016) includes Viriathus’s story in its first episode, titled Resistance. Jefferson Hall played Viriathus.