In 1489, during Torquemada's rise to power, Horacio's noble house refused to support what they saw as an inexcusable abuse of authority by the Inquisition. Not to be trifled with, Torquemada used his influence over the King and Queen to have his family branded as heretics and executed.
Outraged and heartbroken by the news, Horacio decided to abandon the Knights Hospitalier in Rhodes and to return home to avenge them. Getting wind of Horacio's return to the country, the Spanish Assassins approached him and invited him to join them in their fight against Inquisition.
Personality and traits
While working for the Brotherhood, Horacio was invaluable to the cause. His upbringing, garb and knowledge of Templar lore allowed him to infiltrate many locations without suspicion, posing as a Templar knight. Likewise, his amazing armor and two-handed sword prowess made him a bulwark in combat.