The Spanish Inquisition (1478–1834)

Event Summary:
The Spanish Inquisition, established in 1478 by Ferdinand II of Aragon (age 26) and Isabella I of Castile (age 27), sought to enforce Catholic orthodoxy after centuries of Muslim and Jewish presence in Iberia. It became a powerful tool of religious, political, and cultural control in Spain.

Monarchs Consolidate Power:
After uniting Aragon and Castile, Ferdinand and Isabella used the Inquisition to centralize authority under the Crown, bypassing the Pope.

Papal Approval Secured:
In 1478, Pope Sixtus IV reluctantly authorized the Spanish monarchs to appoint inquisitors. This shifted religious policing from the Vatican to the Spanish monarchy.

Targeting Conversos:
The Inquisition focused on conversos—Jews and Muslims who converted to Christianity—suspecting them of secretly practicing their old faiths (crypto-Judaism or crypto-Islam).

Tomas de Torquemada Appointed:
In 1483, the monarchs named Tomás de Torquemada (age 63) as the first Grand Inquisitor. A Dominican friar, he centralized procedures and created a vast bureaucratic apparatus.

Use of Torture and Secrecy:
Interrogations used torture to extract confessions. Trials were secretive; accused individuals often had no knowledge of their charges or accusers.

Autos-da-fé:
Public penance rituals called autos-da-fé (acts of faith) shamed the condemned. Penalties ranged from fines to execution by burning, often with intense public spectacle.

Expansion Beyond Religion:
By the 16th century, the Inquisition targeted Protestant sympathizers, humanists, mystics, and later Enlightenment thinkers. It became a broader tool of censorship and conformity.

Colonial Reach:
The Inquisition extended to Spanish colonies in the Americas, enforcing orthodoxy among settlers and indigenous converts.

Gradual Decline:
Criticism rose by the 18th century. Enlightenment thinkers condemned its abuses. Napoleon briefly abolished it in 1808. Spain permanently ended it in 1834.

Why It Matters:
The Spanish Inquisition symbolized religious intolerance and the use of faith to consolidate power. It stifled intellectual freedom and left a long shadow over Spanish culture and identity.