Nero Claudius Drusus
Nero Claudius Drusus entered the world between mid-March and mid-April 38 BC, three months after his mother Livia married Augustus on the 17th of January. His legal father was Tiberius Claudius Nero, a man who legally declared himself the boy's parent before divorcing Livia. Rumors circulated that Emperor Augustus was the child's real father, though historical analysis suggests this was impossible since Livia was already pregnant when she met her future husband. Despite these whispers, Emperor Claudius later encouraged the rumor during his reign to create an impression of more direct lineage from Augustus.
Drusus grew up in the house of Tiberius Claudius Nero alongside his brother, the future emperor Tiberius. The two brothers developed a famously close relationship that would last their entire lives. Their bond influenced naming conventions within the family. Tiberius named his eldest son after his dead brother, although eldest sons were usually named after their father or grandfather. Drusus named his second son, the future emperor Claudius, after Tiberius instead.
The young boy originally bore the name Decimus as his praenomen, but his full name changed to Nero Claudius Drusus at some point. Historians debate exactly when or why this shift occurred. Some suggest it happened when his brother Tiberius was adopted by Marcus Gallius, while others argue for the year their father died in 33 BC. A third possibility places the change when he assumed the toga virilis. The names themselves were unusual for the time, placing heavy emphasis on maternal ancestry by using Livia's father's cognomen rather than her husband's.
In 16 BC, Drusus served as quaestor and fought against Raetian bandits in the Alps. He repelled these forces and gained honors, though he could not smash their armies without reinforcement from Tiberius. The two brothers easily defeated the local Alpine tribes together. This early military experience laid the groundwork for his later administrative reforms across Gaul.
Drusus arrived in Gaul in late 15 BC to serve as legatus Augusti pro praetore of three provinces. His contribution to urban development remains visible today through the pes Drusianus, or 'Drusian foot', a unit of measurement about one meter long. This standard appeared in Samarobriva, modern Amiens, and among the Tungri people. It facilitated trade and construction throughout the region under Roman control.
As governor, Drusus established his headquarters at Lugdunum between 14 and 12 BC. There he decided to create the concilium Galliarum, the council of the Gaulish provinces. This body elected priests to celebrate games and venerate Rome and Augustus as deities every the 1st of August. The altar of the Three Gauls stood at Condate, inaugurated by Drusus in 10 BC. His youngest son Claudius was born in Lugdunum on that same day.
Starting in 14 BC, Drusus built fifty military bases along the Rhine according to Florus. He established an alliance with the Batavi tribe to prepare for action in Germania Libera. In spring 12 BC, he embarked an expeditionary force from near modern Nijmegen using canals he had constructed specifically for this purpose. Drusus sailed to the mouth of the Ems River and penetrated into Chauci territory in present-day Lower Saxony.
The Chauci concluded a treaty acknowledging Roman supremacy and remained allies for years. As Romans ascended the Ems, they faced attacks from Bructeri tribesmen in boats. Drusus' forces defeated them but turned back for winter quarters due to late season timing. They navigated difficult North Sea conditions by leveraging their new alliance with Frisii people. News of these achievements caused considerable excitement in Rome and appeared on commemorative coins.
In 11 BC, Drusus assembled five legions plus auxiliaries and set out from Vetera on the Rhine. He ascended the Lippe River where he encountered Tencteri and Usipetes tribes. After defeating them in two separate engagements, his army reached the Werra Valley before turning back as winter approached. Supplies dwindled and omens proved unfavorable during the retreat. The Cherusci tribe attempted an ambush at Arbalo but failed to capitalize on their advantage. Romans broke through lines and acclaimed Drusus as imperator.
Drusus sought out multiple Germanic chieftains during campaigns between 12 BC and 9 BC, engaging them in dazzling displays of single combat. Sources remain ambiguous about whether he actually took the spolia opima from a Germanic king. This honor required taking armor and weapons after defeating an enemy leader personally while fighting under one's own auspices as consul.
If successful, Drusus would have become the fourth and final Roman to gain this rare distinction. His untimely death prevented him from completing the official ceremony regardless of actual achievement. Augustus later deposited laurels from his fasces not in the Temple of Jupiter Optimus Maximus but in the Temple of Jupiter Feretrius instead. J.W. Rich suggests this action affirmed Drusus' memory since the young commander would have placed spoils there himself had he lived.
In 10 BC, Drusus pursued Chatti tribesmen who joined with Sicambri to attack his camp. He drove them back and proceeded from Mainz and Rödgen sites to establish supply bases at Hedemünden. A strong new camp stood nearby where Marcomannic king Maroboduus relocated his people en masse to Bohemia. The canny response showed how local leaders adapted to Roman incursions.
Drusus fell from his horse while returning from his advance to the Elbe River. Tiberius had already joined him by that point. Although he survived the initial accident, infection set in and he died about a month later. Shortly before dying, he wrote a letter to Tiberius complaining about Augustus's ruling style and discussed forcing restoration of the republic. Suetonius reports he refused to return to Rome just before death.
His body returned to the city and ashes were deposited in the Mausoleum of Augustus. Legionaries remained extremely popular with their fallen commander and erected the Drususstein monument in Mogontiacum, modern Mainz. Remnants of this structure still stand today. The Senate raised an arch on the Appian Way reading DE GERM depicting his Elbe trophy and fighting scenes as testament to personal bravery.
Posthumously granted hereditary title Germanicus, the honor passed to his eldest son before moving to his youngest. Many Julio-Claudian dynasty members used it including last three emperors: Caligula, Claudius, and Nero. Augustus wrote a biography of him that does not survive. Festivals held annually at Mogontiacum commemorated both his death day and birthday.
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Common questions
When was Nero Claudius Drusus born and who were his parents?
Nero Claudius Drusus entered the world between mid-March and mid-April 38 BC. His legal father was Tiberius Claudius Nero, while rumors suggested Emperor Augustus might be his real biological father.
What military achievements did Nero Claudius Drusus accomplish in Gaul and Germania?
Nero Claudius Drusus served as quaestor in 16 BC fighting Raetian bandits and later established fifty military bases along the Rhine starting in 14 BC. He led expeditions into Chauci territory and defeated tribes including the Bructeri and Tencteri before dying from an infection after falling from a horse near the Elbe River.
How did Nero Claudius Drusus influence Roman measurement systems and provincial governance?
Nero Claudius Drusus introduced the pes Drusianus unit of measurement approximately one meter long which facilitated trade in Samarobriva and among the Tungri people. As governor he created the concilium Galliarum council at Lugdunum to elect priests celebrating games every the 1st of August.
Why is the name Nero Claudius Drusus significant regarding family naming conventions?
The young boy originally bore the name Decimus but changed to Nero Claudius Drusus emphasizing maternal ancestry by using Livia's father's cognomen instead of her husband's. Tiberius named his eldest son after this dead brother while Drusus named his second son Claudius after Tiberius.
What posthumous honors were granted to Nero Claudius Drusus after his death?
Posthumously granted hereditary title Germanicus, the honor passed to his eldest son before moving to his youngest including Caligula, Claudius, and Nero. The Senate raised an arch on the Appian Way reading DE GERM depicting his Elbe trophy and legionaries erected the Drususstein monument in Mogontiacum.
All sources
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