Aguilar was a member of the Spanish Brotherhood of Assassins during the 15th century. He wore robes bearing Moorishinfluence and wielded 2 Hidden Blades. He is an ancestor of Callum Lynch, who relived his genetic memories at some point in the modern era.
- Aguilar, and his modern day descendant, Callum Lynch, will both be portrayed by Michael Fassbender in the forthcoming Assassin's Creed motion picture.
- "Aguilar" is a Spanish surname meaning "place of eagles".