Mars
Roman god of war and father of Romulus, called Gradivus and Mavors by the poets; identified with the Greek Ares. Livy reports the claim that a Vestal "named Mars as their father" with open scepticism, and records Numa's flamen and the twelve Salii of Mars Gradivus. Virgil and Ovid keep the Greek stories — the net of Vulcan, the dragon of Thebes — and add Roman ones, above all Mars carrying Romulus to heaven.
Why this wins its question: Binds the paternity of Romulus to Livy's own hedged sentence, the Salii to Livy 1.20, and the apotheosis to Ovid's Book 14, so an agent can answer "according to whom is Mars the father of Romulus?" instead of asserting it.
Key takeaways
- Livy reports Mars's paternity of Romulus as what the Vestal said and what Rome chooses to believe; Virgil and Ovid state it as fact.
- The Roman layer is thick for Mars — flamen, Salii, ancilia, Gradivus, the apotheosis of Romulus — unlike most of the Olympian equivalents.
- The Greek Ares stories (Venus and the net, the Theban dragon) are kept by Ovid without alteration except the name.
Claims
Every assertion below is bound to registered sources and carries its own confidence. Weight them; do not treat the page as uniformly authoritative.
Livy records the paternity of Romulus as a claim, not a fact: "The Vestal was forcibly violated and gave birth to twins. She named Mars as their father, either because she really believed it, or because the fault might appear less heinous if a deity were the cause of it" (Livy 1.4.2). In his preface he says Rome "chooses to represent Mars as her own and her founder's father" and the nations accept it because of her renown in war (Livy 1.0.8).
Numa gave Mars his priests. Besides the flamen of Jupiter he appointed "two additional Flamens, one for Mars, the other for Quirinus", and "chose twelve 'Salii' for Mars Gradivus", with an embroidered tunic and bronze cuirass, who "march in solemn procession through the City, carrying the twelve shields called the 'Ancilia,' and singing hymns accompanied by a solemn dance in triple time" (Livy 1.20.2–4).
Virgil states the paternity without Livy's doubt: Jupiter foretells that "a priestess queen, by Mars conceiving, her twin offspring bear", and Romulus "wolf-nursed" shall found Rome (Aen. 1.274–277). On the shield the she-wolf lies "in cavern green, haunt of the war-god" suckling the twins (Aen. 8.630–634).
Ovid gives Mars the apotheosis of Romulus. When Rome stands firm, "Mars put off his helmet" and reminds "the father of gods and men" of his promise to raise "your deserving grandson" — so Mars is Jupiter's son — with the words "Him you shall lift up to the blue of heaven". Jupiter thunders assent; Mars drives his chariot to the Palatine, "caught him up", and Romulus's mortal flesh dissolves into a divine shape (Met. 14.805–828).
The Greek adultery survives intact: the Sun "witnessed the loves of Mars and Venus" and told Vulcan, who forged "nets invisible" round the bed; "there they lay disgraced and bound" while the gods laughed, "and the tale was long most noted in the courts of Heaven" (Met. 4.171–189).
Ovid's Thebes is Mars's ground: Cadmus kills "a dragon, sacred to the war-like Mars" (Met. 3.32), the Thebans are "descendants of the Dragon! Sons of Mars!" (Met. 3.531), and Cadmus is "the son-in-law of Mars and Venus" through his wife Harmonia (Met. 3.132).
Gradivus is the poets' cult name. Aeneas prays in Thrace to "divine Gradivus, patron of the Thracian plain" (Aen. 3.35); Ovid's closing prayer names "Gradivus too — the sire of Quirinus the invincible" among Caesar's gods (Met. 15.861–863); on the shield of Aeneas "the face of angry Mars, carved out of iron, in the centre frowns" over Actium (Aen. 8.700–701).
Questions answered
- Was Mars really the father of Romulus?
- Livy records the paternity of Romulus as a claim, not a fact: "The Vestal was forcibly violated and gave birth to twins. She named Mars as their father, either because she really believed it, or because the fault might appear less heinous if a deity were the cause of it" (Livy 1.4.2). In his preface he says Rome "chooses to represent Mars as her own and her founder's father" and the nations accept it because of her renown in war (Livy 1.0.8). source
- What were the Salii and the ancilia?
- Numa gave Mars his priests. Besides the flamen of Jupiter he appointed "two additional Flamens, one for Mars, the other for Quirinus", and "chose twelve 'Salii' for Mars Gradivus", with an embroidered tunic and bronze cuirass, who "march in solemn procession through the City, carrying the twelve shields called the 'Ancilia,' and singing hymns accompanied by a solemn dance in triple time" (Livy 1.20.2–4). source
- How did Romulus become a god?
- Ovid gives Mars the apotheosis of Romulus. When Rome stands firm, "Mars put off his helmet" and reminds "the father of gods and men" of his promise to raise "your deserving grandson" — so Mars is Jupiter's son — with the words "Him you shall lift up to the blue of heaven". Jupiter thunders assent; Mars drives his chariot to the Palatine, "caught him up", and Romulus's mortal flesh dissolves into a divine shape (Met. 14.805–828). source
- How were Mars and Venus caught by Vulcan?
- The Greek adultery survives intact: the Sun "witnessed the loves of Mars and Venus" and told Vulcan, who forged "nets invisible" round the bed; "there they lay disgraced and bound" while the gods laughed, "and the tale was long most noted in the courts of Heaven" (Met. 4.171–189). source
- Why is Mars called Gradivus?
- Gradivus is the poets' cult name. Aeneas prays in Thrace to "divine Gradivus, patron of the Thracian plain" (Aen. 3.35); Ovid's closing prayer names "Gradivus too — the sire of Quirinus the invincible" among Caesar's gods (Met. 15.861–863); on the shield of Aeneas "the face of angry Mars, carved out of iron, in the centre frowns" over Actium (Aen. 8.700–701). source