Lucius Julius Libo was a member of the influential Julii clan. This patrician family was always of the most distinguished blood. However, they had long since fallen out of the inner Roman elite. The Julii were active in politics since the Punic Wars.

Libo descended from the Julii who fled from Alba Longa to Rome. This city was destroyed by the Roman king Tullus Hostilius. His ancestors claimed their descent from the goddess Venus and the first Roman king Romulus.

Libo was consul in 267 BC. According to the Fasti Triumphales he celebrated a triumph over the Sallentini on 23 January 266 BC.

Gift med
Metella Macedonica av Caecilii, född -302 i Roma, Lazio, Italien, död -250 i Roma, Lazio, Italien.

Barn:
Lucius Libo II av Julii, född -285, död -225