Legio X Fretensis

Legio X Fretensis (Latin: "Tenth legion of the sea strait") was a Roman legion levied by Augustus in 41/40 BC to fight during the period of civil war that started the dissolution of the Roman Republic. X Fretensis is recorded to exist at least until 410s.

X Fretensis symbols were the bull, the holy animal of the goddess Venus (mythical ancestor of the gens Julia), a ship (probably a reference to the battles of Naulochus and/or Actium), the god Neptune, and a boar. The symbol of Taurus may also mean that it was organized between 20 April and 20 May.

Octavian, later known as Caesar Augustus, levied a legion and gave it the number ten, as a reference to Julius Caesar's famous Tenth Legion.

In 36 BC, the Tenth Legion fought under Octavian against Sextus Pompeius in the Battle of Naulochus, where it earned its cognomen Fretensis. The name refers to the fact that the battle took place near the sea Strait of Messina (Fretum Siculum).

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