The Tenth was Caesar's first legion personally raised and has always been his most trusted. The name Equestris was given after Caesar gave the legionaries horses as a ruse in a parley with the German king Ariovistus in 58 BC because he did not trust his Gallic Aedui cavalry auxiliaries. The Legio His soldiers were discharged in 45 BC. Its remains were reconstituted, for Marco Antonio and Ottaviano, dissolved and subsequently merged into the X Gemina.
