Legio XI

Legio XI Claudia Pia Fidelis
Active	58 BC to 45 BC, then reconstituted 42 BC.
Country	Roman Republic, Roman Empire, and Eastern Roman Empire
Type	Roman legion
Role	Heavy Infantry
Size	Varied. Approximately 4,800 men with officers, staff, and 120 man cavalry detachment during the Principate.
Mascot(s)	Neptune
Commanders
Notable commanders	Julius Caesar Augustus Titus Pullo Lucius Vorenus Titus Labienus

Legio XI Claudia was a Roman Legion levied by Julius Caesar in 58 BC in Cisalpine Gaul, for his war against the Nervians. They participated in the civil wars of the late Republic, the Year of the Four Emperors, the Batavian revolt, Trajan's Dacian wars, Severus' Parthian war, and the war with the Gallic Empire. They were likely destroyed or disbanded some time after 425 AD.

Legio XI Claudia, along with Legio XII Fulminata, was a Roman Legion levied by Julius Caesar in 58 BC in Cisalpine Gaul, for his war against the Nervians. They likely were present at the Siege of Alesia. After his campaigns in Gaul, civil war broke out between Julius Caesar and Pompey, both of whom were triumvirs, and in January, 49 BC, Caesar invaded Italy with Legio XI serving in his army. They fought in 48 BC at Dyrrhachium and Pharsalus, but were disbanded in 45 BC and settled in Central Italy around the area of Bovianum Undecumanorum.

Legio XI was reconstituted in 42 BC by Octavian for the civil wars. They served under the command of the second triumvirate consisting of Octavian, Mark Antony, and Marcus Aemilius Lepidus against Brutus and Cassius, who had assassinated Julius Caesar. The Legion was present at the Battle of Phillipi in 48 BC, following which they were dispatched to Perugia in Italy to suppress a local revolt. They likely also served with Octavian in Sicily against Sextus Pompeius.

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