At an early age, Luis Chico was abandoned as an orphan in the streets of Madrid, forcing him to turn to thievery to survive. Thanks to his audacity and charisma, he eventually formed his own gang with other young thieves, dubbing themselves the Cien Ojos ("Hundred Eyes"). Together they robbed wealthy merchants and nobles, reaching higher and higher until they dared to target even the Spanish Inquisition.
This last act ended in tragedy owing to the Inquisition's connection to the Templars; an attempted burglary of a Templar villa resulted in the deaths of all of Luis's friends with him as the sole survivor. Determined to avenge them, Luis joined the Assassin Brotherhood, dedicating his thievery talents to their cause, and from then on resolved to steal exclusively from Templars.
Like many orphans forced to survive on their own in poverty, Luis Chico adapted by relying on robbery. Growing up in these circumstances led to him becoming a talented thief, and his gang's successes were such that they were confident enough to aim for ambitious targets. Nevertheless, their skills were not limitless, and they demonstrated their fallibility when they challenged the Spanish Inquisition and the Templars themselves and failed.
As the leader of this foolhardy operation, Luis exhibited his characteristic audacity. His gang, while daring, were rash and reached too high. Even so, this same fiery personality was what allowed him to empower his friends and unify them under his leadership.
- Luis Chico is nearly identical in appearance to Lanz, a contemporary thief who leads a gang in Rome in Assassin's Creed: Brotherhood. Their uncanny resemblance is reinforced by their gangs identical names, albeit in different languages: Luis's Cien Ojos and Lanz's Cento Occhi both translate to "Hundred Eyes". Their one marked contrast lies in their allegiances: Luis to the Assassins, Lanz to the Templars.
- Luis is derived from the Germanic name Ludwig, meaning 'famous warrior'. Chico is Spanish for 'small, boy' and 'child'.