Viriathus (also spelled Viriatus; known as Viriato in Portuguese and Spanish; died 139 BC) was the most important leader of the Lusitanian people who resisted Roman expansion into the region now known as Portugal, which was called Lusitania.

Viriathus formed alliances with other Celtic groups, even in areas far from where he usually fought, encouraging them to rebel against Rome. He led his army, supported by most of the Lusitanian and Vetton tribes as well as by other Celtic and Iberian allies, to several victories over the Romans from 147 BC to 139 BC. He was later betrayed by his allies and murdered while sleeping. Theodor Mommsen said of him: "It seemed as if, in that very ordinary time, one of the Homeric heroes had reappeared."

Etymology

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

• the Indo-European root *uiros, meaning "man," which relates to strength and being a man;
• the Celtic *uiro-, meaning "man"; and older forms like viros, viri, viro, and viron, which led to the Old Irish word "fir" for "man";
• *uei-, as seen in the viriae or Celtiberian "twisted armbands" worn by warriors (Pliny XXI, 39);
• the Latin word "viri" (pronounced "wee-ree"), which also comes from the Indo-European root above and means "man," "hero," or "person of courage, honor, and nobility."

This name is related to the Welsh name Gwriad and possibly to the Irish name Ferdiad.

The Celtic leaders used the title "uiros ueramos," meaning "the highest man," and the Latin version of this title was "summus vir."

According to the historian Schulten, Viriathus had a Celtic name.

Viriathus' life

Little is known about Viriathus. The only information about his native tribe comes from the Greek historian Diodorus Siculus, who stated that Viriathus was from the Lusitanian tribes living along the coast.

He was part of the group of warriors who belonged to the ruling elite. The Romans called him the dux (leader) of the Lusitanian army, the adsertor (protector) of Lusitania, or the imperator (commander), likely of the combined Lusitanian and Celtiberian tribes.

Livy described him as a shepherd who became a hunter and later 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 who survived 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 a mysterious background, but Diodorus Siculus wrote 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 local warrior society. His strength, intelligence, and skills as a warrior were described by several authors. He was strong, a skilled strategist, and had a brilliant mind. Some compared him to a Celtic king.

He was known for honesty and fairness, and he kept his promises in treaties and alliances. Livy called him "vir duxque magnus," meaning he embodied ancient virtues.

Some modern historians believe Viriathus came from 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. His goals were to serve and gain honor, unlike common soldiers who fought for material gain.

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

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

Most of his life and his resistance against the Romans are part of legend. He is considered the earliest Portuguese national hero, as he led the confederate tribes of Iberia who opposed Rome. Appian wrote that Viriathus "killed numerous Romans and showed great skill."

Some argue that Silius Italicus, in his poem Punica, mentioned a Viriathus who lived during the time of Hannibal. He was called "primo Viriatus in aeuo" and led the Gallaeci and Lusitanians.

The historical Viriathus was called "magnanimous ruler of the Iberian land" (Latin: regnator Hiberae magnanimus terrae).

Conquest of Lusitania by Rome

In the 3rd century BC, Rome began conquering 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 beginning of 250 years of fighting in Iberia, which ended in 19 BC with Rome’s victory in the Cantabrian Wars. The Lusitanian War is one of the best-recorded events during this time.

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. Two elected officials called praetors were assigned to lead the Roman armies. Like many other tribes in Iberia, the people living in Lusitanian castros, or citanias, were given a special status called peregrina stipendiaria. However, they remained an independent (Greek: αὐτονόμων) country through treaties (foedus).

Lusitania’s land was described by ancient writers as very rich. Polybius wrote in his Histories that Lusitania had a favorable climate, which made both people and animals healthy, and the land produced a lot of food.

The Romans imposed heavy taxes on native tribes, including a land tax called vectigal, a tax 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 provided money. Native towns had 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 interests of the native tribes. The harsh treatment of Iberian people led Rome to create special laws, like the Lex Calpurnia in 149 BC.

The Lusitanians rebelled against the Romans in 194 BC. Iberia was divided between tribes that supported Rome and those that opposed it, similar to earlier divisions between tribes that supported Carthage and those that supported Rome.

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

In 152 BC, the Lusitanians made a peace agreement with Marcus Atilius after he captured Oxthracae, Lusitania’s largest city. In Roman law, people who surrendered after fighting against Rome were called peregrini dediticii. The terms of the treaty were not good, so when Atilius returned to Rome, the Lusitanians broke the agreement. They then attacked tribes that had supported Rome and helped plunder Lusitanian towns. It is possible the Lusitanians recovered some of the loot the Romans had taken.

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

The praetor of Hispania Ulterior, Servius Sulpicius Galba, commanded Roman troops in Iberia around 150 BC. At the same time, Lucius Licinius Lucullus was appointed governor of Hispania Citerior and led an army. In 151 BC, Lucullus made a peace treaty with the Caucaei, a group from the Vaccaei tribe, after which he ordered his soldiers to kill all the adult males of the tribe. It is said only a few of the 30,000 people survived.

Galba joined forces with Lucullus and began to attack Lusitania. While Lucullus invaded from the east, Galba attacked from the south. The Lusitanians, unable to fight on two fronts, suffered many losses. Fearing long sieges and destruction from Roman siege engines, the Lusitanians sent an embassy to Galba to negotiate a peace treaty. For the Romans, this was seen as a surrender called Deditio in dicionem. The Lusitanians hoped to renew the earlier treaty with Atilius. Galba received the Lusitanians politely and agreed to a treaty. He ordered them to leave their homes and live in open areas. Their city and possessions would likely become Ager Publicus, meaning public land controlled by Rome.

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 split into groups as the treaty required, Galba’s army surrounded them with a ditch to trap them. Roman soldiers then killed all the men of military age, and the survivors were sold as slaves in Gaul.

Moving an entire tribe, killing members, or enslaving them was a punishment Rome used against native people who rebelled.

Galba gave some of the plunder to his soldiers and allies, keeping the rest for himself. This angered the Lusitanians, leading to a massive rebellion that lasted three years. Despite many failures, the rebellion nearly collapsed until Viriathus emerged as a leader. Using his knowledge of Roman tactics, Viriathus saved the Lusitanians with a clever escape plan. He became their leader and led a long fight against Rome to avenge the massacre of his people.

The "War of Fire"

The war with Viriathus was named "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 historians consider Viriathus to be 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 military leader Caius Vetilius to fight the rebellion. He attacked a group of Lusitanian warriors who were gathering supplies. After some of them were killed, the survivors sought shelter in a place surrounded by the Roman army. They were about to agree to a new deal with the Romans when Viriathus, who did not trust the Romans, suggested an escape plan. Inspired by his speech, the Lusitanians chose him as their new commander. His first action was to rescue the trapped Lusitanians. He led them in battle against the Romans, then scattered the Roman army as they charged. As each group of soldiers fled in different directions to regroup later, Viriathus and 1,000 chosen men held back the Roman army of 10,000. Once the rest of the army fled, Viriathus and his men escaped as well. By saving all the Lusitanian soldiers, he quickly gained the loyalty of the people around him.

Viriathus planned an attack on Caius Vetilius in Tribola. Because the Romans had better weapons, he used guerrilla tactics and set up clever ambushes. The Lusitanians fought with iron spears, tridents, and loud cries, 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 encouraged the Numantine people and some Gauls to rebel against Roman rule.

To fully control 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 achieved a temporary victory, 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 in what is now Spanish territory, including modern-day Granada and Murcia. Viriathus’s actions, along with those of the Numantine War, caused problems for Rome, including a drop in the number of soldiers joining the Roman legions.

Learning about 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. Instead of harming the Romans, Viriathus allowed the soldiers and Servilianus to leave in exchange for a peace treaty that recognized Lusitanian rule over the land they controlled. The Roman Senate approved this agreement, and Viriathus was declared "amicus populi Romani," meaning "friend of the Roman people."

However, the peace treaty upset Quintus Servilius Caepio, who was appointed to replace his brother, Q. Fabius Maximus Servilianus, in command of the army and Iberian affairs. In reports to the Roman Senate, Caepio claimed the treaty was deeply dishonorable to Rome. Livy, a Roman historian, noted that the treaty was unfair for Servilianus’s career but stated the treaty itself was fair. The Senate allowed Caepio to secretly harass Viriathus. The treaty lasted for one year. During this time, Caepio pressured Viriathus with reports until the Senate authorized him to publicly declare war.

Death

Knowing that the Lusitanian resistance was led by Viriathus, the Roman general Caepio gave money to three men—Audax, Ditalcus, and Minurus. These men had been sent by Viriathus to talk with the Romans about making peace (Appian). Instead, they returned to Viriathus' camp and killed him while he was sleeping. Eutropius wrote that when the killers asked Caepio for their payment, he said, "It was never pleasing to the Romans that a general should be killed by his own soldiers." In a version more common in modern Portugal and Spain, he said, "Rome does not pay traitors." The Roman Senate later refused to allow Caepio to hold a Triumph, a special honor given to victorious generals.

After Viriathus' death, the Lusitanians continued fighting under the leadership of Tautalus (Greek: Τάυταλος).

Later, a Roman official named Laenas gave 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 customs 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 described as one of the most successful generals who ever fought against Rome's expansion. In the end, even the Romans believed it was better to use deceit than open fighting to end the Lusitanian resistance. About fifty years later, the Roman general Quintus Sertorius, who led another rebellion in Iberia, faced a similar fate.

Legacy

Viriathus became a lasting symbol of Portuguese identity and freedom. Artists have portrayed him, and people in Portugal and Spain have honored him for many years. In his famous poem Os Lusíadas, Luís Vaz de Camões praises Viriathus' 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' eight victories over the Romans. However, some historians question whether this connection is accurate.

A street in Madrid is named after Viriathus. It is located in the Chamberí neighborhood, near the 'Iglesia' metro station. Similar streets are found 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 Roman forces during the Lusitanian Wars.

• The Portuguese film No, or the Vain Glory of Command (1990), directed by Manoel de Oliveira, tells stories from Portugal's military history. A Portuguese lieutenant shares these stories with 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' life. Roberto Enríquez portrayed him in the show.
• The History Channel's Barbarians Rising (2016) includes a story about Viriathus in its first episode, titled "Resistance." Jefferson Hall played Viriathus in this episode.