Basilio Aguirre Olmos de la Vargas

Basilio is a minor character and a Stranger featured in Red Dead Redemption. He appears in and gives the player the Stranger side-mission "Aztec Gold".

Background
He is searching for some lost Aztec treasure that was owned by his great-great-grandfather (a "hero of a man" who slaughtered many Aztec "heathens") and requests Marston's help in doing so.

Interactions
After Marston finds the other pieces of the map, much to his devestation, there was no treasure.

Trivia

 * Basilio can speak both Spanish and English fluently, and it is implied he can also speak Dutch, German and Italian.
 * He has apparently left his family behind in the city to search for the treasure, and frequently receives messages from them, including messages from his children wanting their dad to come home.
 * Basilio's situation where he realises that there is no treasure, is similar to the situation of Seth Briars.