Mars

Roman war-god, but the registry treats Mars as substantively distinct from Greek Ares despite ancient identification. Pre-urban agricultural protector (Cato 141, Carmen Arvale) carrying war-functions; central to Roman civic religion through the Salii, the ancilia, the March/October ritual frame; begetter of Romulus and Remus on Rhea Silvia (Liv. 1.4); honored where Ares was hated. The Italic features (woodpecker, ancilia, horse-tail to the Regia) have no Greek equivalent. Per Beard/North/Price, Religions of Rome (1998); Wissowa, Religion und Kultus der Römer (1912); Dumézil, Archaic Roman Religion (1970); Scheid, Introduction to Roman Religion (2003).

Parentage

Recorded default; alternative parentage accounts are listed separately below.

• father: IuppiterParentage in the cited Latin account.Hyginus, Fabulae, Preface: mars (primary)
• mother: IunoParentage in the cited Latin account.Hyginus, Fabulae, Preface: mars (primary)

Parentage accounts

Each account is a separate source claim. The parentage and children listed outside these accounts use the recorded default. Selecting an account in the interactive app updates its lineage, descent classification and inherited-power candidates. Linked pedigree accounts are selected together; other records retain their recorded parentage. Claims of ancestry are not proof of biological descent or attested powers.

• Hyginus: Jupiter and Juno

  deity by descent in this account.

  • father: IuppiterHyginus, Fabulae, Preface (primary)
  • mother: IunoHyginus, Fabulae, Preface (primary)
  Hyginus, Fabulae, Preface (primary)
• Ovid: Juno without a father

  deity by descent in this account.

  • mother: IunoOvid, Fasti 5.229–260 (primary)
  Ovid, Fasti 5.229–260 (primary)

Children

• Modius Fabidius
• Remus
• Romulus

Variant accounts

• parentageOvid instead recounts Juno conceiving Mars without Jupiter through Flora’s flower.Ovid, Fasti 5.229–260 (primary)

Domains

• war civic
• agricultural protection
• fatherhood of Rome
• march calendar

Powers

• Fathers Romulus and Remus upon Rhea Silvia
• Rouses men to war and martial fury

Epithets

• Gradivus latin · cultthe marching one / he who strides forthLiv. 1.20.4; Verg. Aen. 3.35 (primary)
• Ultor latin · cultthe avengerSuet. Aug. 29.2; Ov. Fast. 5.577 (primary)
• Silvanus latin · cultof the wild / of the boundaryCato Agr. 141 (primary)
• Quirinus latin · cultthe Quirinal aspect / the spear-bearerDumézil 1970 (secondary)
• Mars Pater Latin · Marspiter · cultFather Mars (the standard cult-address)Cato, De Agri Cultura; Gellius; Macrobius, Saturnalia 1 (primary)

Relations

• sibling: Quirinus (Roman state-cult deity, Sabine-origin war-god later identified with the deified Romulus; canonically childless; not registered per the registry's deity-only-as-required-parent-anchor principle) · RomanExternalref-only — roman_quirinus no longer registeredDumézil 1970 (the Archaic Triad ideological structure) (secondary)
• lover: Rhea SilviaReciprocal of roman_rhea_silvia.loverLiv. 1.4.2; Ov. Fast. 3.11-44 (primary)
• interpretatio: AresAncient identification Ares ↔ Mars from the middle Republic onward as Greek mythology entered Roman literary culture. Identification is partial — Roman Mars retains substantial Italic-only cult features (Salii, ancilia, Equus October, woodpecker) that Greek Ares never had.Varro LL 5.73; Cic. Nat. D. 3.62; Liv. 1.20 (primary)
• interpretatio: Bared-Sword War-God (Sarmatian Ares)Reciprocal of sarmatian_sword_god.interpretatio — Ammianus: a sword fixed in the earth is worshipped 'as Mars'. Preserves war-divinity in aniconic steppe form; breaks on everything civic and calendrical in Roman Mars, including his agrarian roots.Ammianus Marcellinus 31.2.23 (the Alans worship a bare sword as Mars) (primary)
• sibling: BellonaReciprocal of roman_bellona.sibling — Roman war-goddess most often Mars's sister/companion; deity-tier blocks a single-parent link so kinship is recorded as sibling.Ovid, Fasti 6.201-208; cf. Statius, Thebaid (Bellona as sister/companion of Mars) (primary); Wissowa, Religion und Kultus der Römer (1912), s.v. Bellona (secondary)
• father: IuppiterParentage in the cited Latin account.Hyginus, Fabulae, Preface: mars (primary)
• mother: IunoParentage in the cited Latin account.Hyginus, Fabulae, Preface: mars (primary)

Sources

• existence: Cato Agr. 141; Liv. 1.4, 1.20; Ov. Fast. 3 entire; Verg. Aen. 1.276, 8.630-634 (primary)
• parentage: Ov. Fast. 5.229-260 (Mars born of Juno alone via the flower of Olenus, without Jupiter); Hes. Theog. 921-922 cited via interpretatio as son of Iuppiter and Iuno (primary)
• cult: Liv. 1.20 (Numa institutes Salii and ancilia); Cato Agr. 141 (Mars Silvanus farm prayer); Ov. Fast. 3 (Martius rituals) (primary)
• identification: Varro LL 5.73; Liv. 1.20 (primary)