Introduction
You likely picture the Spanish Inquisition as a terrifying engine of absolute terror. Popular culture presents the Holy Office as an omnipresent tribunal consuming millions of lives through brutal torture and fire. This dramatic myth misrepresents how the institution actually functioned in early modern Spain.
The Spanish Inquisition was not a totalitarian engine of absolute monarchy, but a fragmented and often impotent tribunal that survived largely because it was rarely seen and rarely heard.
Henry Kamen strips away centuries of legend to reveal the bureaucratic realities of the tribunal. You will examine the fate of minorities, the mechanics of trials, and the true cultural impact of state censorship.
- How did everyday interfaith cooperation shape pre-modern Spanish society?
- What drove the expulsion of Jews and Moriscos from the peninsula?
- Why did Protestantism fail to penetrate Spain?
- How did the myth of inquisitorial omnipotence overshadow rural reality?
1. Faith and Doubt in the Mediterranean
Pre-modern Spanish society was a pluralistic Mediterranean culture characterized by everyday interfaith cooperation, widespread popular skepticism, and an absence of formal heresy. You see a landscape divided among multiple cultures and faiths during the fifteenth century. Portugal held under a million people, while al-Andalus contained half a million farmers and silk producers. Christian Spain counted some 6 million souls, split politically between the crown of Castile and the crown of Aragon.
Pre-modern Iberian society was divided among multiple cultures and faiths, with Christian Spain holding a Christian majority alongside significant Muslim and Jewish populations.
Minorities faced social disadvantages. Communities nonetheless shared language, culture, food, and dress, while laws made allowances for diversity.
Muslim musicians and jugglers participated in Christian religious celebrations in Murcia. Almost all the musicians in the Corpus Christi procession in Tarazona were Muslims.
Late medieval Spain remained remarkably free of organized formal heresy among Christians. Religious practice among ordinary people blended folklore and community traditions. Church leaders found widespread ignorance of dogma but little organized heresy, making a papal Inquisition unnecessary in Castile.
A textile worker of Reus in Catalonia stated in 1632 that believing in God meant good food, good drink, and getting up at ten o'clock.
The establishment of the Spanish Inquisition in 1478 arose from monarchical efforts to stabilize power and eliminate social conflict. Following their marriage in 1469, Ferdinand and Isabella sought to unify their realms and pacify troubled regions like Andalucía by introducing a special court to investigate converted Jews. The Holy Office ultimately served to deepen social divisions rather than heal them.
2. The Great Dispersion
The expulsion of Spain's Jews in 1492 and the earlier massacres of 1391 created a vast converso population while uprooting Sephardic communities across Europe.
Fueled by economic distress and the fiery preachings of figures like Ferrant Martínez, urban mobs murdered hundreds of Jews and destroyed major aljamas. Survivors faced the stark choice of death or baptism. This generated a large group of New Christians whose sincerity was frequently doubted by traditional churchmen.
During the summer of 1391, some 250 Jews were murdered in Valencia and 400 in Barcelona, while the aljama of Seville was completely destroyed.
In March 1492, following the fall of Granada, Ferdinand and Isabella issued an edict giving Spain's remaining Jews a strict choice between baptism or permanent exile. Influenced strongly by Inquisitor General Torquemada and frustrated by the persistence of converso heresy, the monarchs decided that total separation through expulsion was the only solution. Despite pleas and financial offers from Jewish leaders led by Isaac Abravanel, the crown proceeded with the banishment.
Isaac Abravanel and a deputation of Jewish leaders met with King Ferdinand and offered a large sum of money to reverse the decision. Torquemada allegedly threw thirty pieces of silver on the royal table.
Historical estimates of the number of Jews expelled from Spain have been vastly inflated by contemporary and later writers. Actual demographic data points to a much smaller population. Reliable analysis of Castilian tax returns and regional headcounts indicates that the total Jewish population on the eve of 1492 was just over eighty thousand souls.
Historian and writer Juan de Mariana claimed up to 170,000 families or 800,000 souls left. Modern fiscal analysis shows about 70,000 Jews in Castile and roughly 9,000 in Aragon.
Faced with the 1492 expulsion order, approximately half of Spain's Jewish population chose baptism over exile in order to preserve their homes and livelihoods. Those who chose exile suffered terribly from shipboard overcrowding, disease, and exploitation.
Eighty-year-old Abraham Seneor, chief judge of Castilian aljamas and royal treasurer, converted in June 1492 with the king and queen acting as his sponsors, taking the surname Pérez Coronel.
3. The Coming of the Inquisition
The establishment of the Holy Office in 1478 aimed to police converted Jews, relying on dubious hearsay, swift trials, and local institutional force.
Ferdinand and Isabella obtained a papal bull from Pope Sixtus IV on November 1, 1478, providing for the appointment of inquisitors. This decision was prompted by intense preaching by figures like Fray Alonso de Hojeda in Seville and supported by reports of secret judaizing. The newly formed tribunal was placed under the control of the Spanish crown with Tomás de Torquemada as inquisitor general, leading to the definitive formation of the tribunal in Medina del Campo in 1480.
The prosecution cases brought by the early Inquisition relied heavily on dubious hearsay, voluntary confessions driven by fear, and long-range memories of decades-old cultural habits. Inquisitors lacked formal training in criminal law and frequently interpreted normal cultural habits, dietary preferences, or residual family traditions as proof of heresy. Witnesses routinely testified about events from twenty to fifty years in the past.
In Ciudad Real in 1484, prosecution witnesses against a converso testified about events they claimed to remember from twelve, thirty-five, and forty years before.
The introduction of the Castilian-style Inquisition into the legally autonomous realms of Aragon met with fierce constitutional resistance, culminating in the high-profile assassination of an inquisitor. Aragonese subjects and nobles argued that the Inquisition violated their local laws, known as fueros.
On the night of September 15-16, 1485, conspirators stabbed the inquisitor Pedro Arbués while he prayed in Saragossa cathedral, leading to his death and subsequent severe reprisals against elite converso families. Conspirators incurred a total cost of 600 gold florins to hire the assassins of Arbués.
While thousands of conversos passed through the machinery of the Inquisition via voluntary reconciliation or penalties, the actual number of executions was significantly lower than early chroniclers claimed. Trial records reveal that the vast majority of cases were handled through edicts of grace, fines, penances, or reconciliations. The ultimate penalty of death was executed primarily against a small fraction of individuals, often in absentia through the burning of effigies.
4. An Enduring Crisis
During the first decades of its existence, the Inquisition had almost no contact with the vast majority of Spaniards. Because primitive state bureaucracies could not impose a tyranny on the masses, the tribunal focused on key urban areas in Andalucia, Toledo, Saragossa, and Barcelona. It did not reach out to the 90 percent of the population living in the countryside until nearly a century after its foundation. In its crucial first hundred years, the majority of Spaniards had no direct contact with the Holy Office and experienced no daily interference.
The tribunal survived through unswerving royal backing and manufactured crises, despite facing severe regional resistance, corruption, and constitutional limits.
Corrupt inquisitors exploited the tribunal's extraordinary powers to fabricate evidence, extort wealthy citizens, and terrorize entire communities for personal enrichment. Diego Rodríguez Lucero, appointed inquisitor of Córdoba in 1499, arrested leading citizens on false charges of a pro-Jewish millenarian movement. His regime generated widespread scandal, massive property confiscations, and large-scale executions until local rebellions and royal intervention forced his removal. Records show 130 people relaxed in two autos de fe in 1500, 27 victims in May 1505, and 400 innocent prisoners currently in cells.
Regional elites in the crown of Aragon fiercely resisted the Inquisition as a foreign and unconstitutional body, forcing the crown to sign formal accords limiting its jurisdiction. Representatives from Aragon, Catalonia, and Valencia repeatedly petitioned the monarch to reform inquisitorial procedures. Through the Cortes, they extracted concessions known as concordias to restrict the number of familiars, prevent arbitrary confiscations, and bar the tribunal from judging non-heresy cases like usury and bigamy. Meeting at Monzón in 1512, the Aragonese Cortes drew up a comprehensive list of reforms that King Ferdinand signed, marking the first concordia between the region and the Inquisition.
Both Ferdinand and Charles V viewed the tribunal as an indispensable institution for maintaining religious uniformity and royal security, vowing to protect its authority above all else. Meanwhile, the Old Christian majority largely tolerated or ignored the tribunal's campaigns against minorities as long as their own immediate interests were not threatened. Charles V declared to his correspondents that he would rather lose part of his realms than permit anything to be done against the authority of the Holy Office.
5. Excluding the Reformation
Early sixteenth-century Spain experienced a brief wave of enthusiasm for Renaissance scholarship and the works of Erasmus, protected initially by high-ranking Church officials and Emperor Charles V. Prominent scholars and prelates promoted humanist studies, founding centers like the University of Alcalá and producing the six-volume Complutensian Polyglot Bible.
Protestantism failed to penetrate Spain due to unique Mediterranean resistance and ruthless repression directed by Charles V against small domestic cells.
Alonso Fernández translated Erasmus's Enchiridion in 1524, writing that it was read everywhere from the emperor's court to inns and highways, and Miguel de Eguía printed thousands of copies that could not satisfy buyers. By the mid-sixteenth century, small distinct circles of Protestant sympathizers emerged in Seville and Valladolid, influenced by imported literature and foreign travel. In Seville, international trade routes facilitated the importation of forbidden books, creating an approximately 120-member Protestant group that included members of monastic orders. In Valladolid, an influential circle of 55 persons formed around civil governor Carlos de Seso and members of the Cazalla family, displaying clear rejections of Catholic dogma.
Dr. Agustín Cazalla and his noble family were swept into Protestant heresy through contacts in Germany, leading to mass arrests directed by Inquisitor General Fernando de Valdés. Alarmed by the discovery of domestic Protestant networks, Emperor Charles V urged a hardline policy of ruthless repression, framing heterodoxy as a threat to state stability. Charles V wrote a historic letter on 25 May 1558 warning his daughter that failure to suppress the nascent Protestant movement without distinction of persons would lead to irreversible civil upheaval.
The failure of the Reformation to penetrate Spain cannot be solely attributed to the Inquisition; rather, the absence of native medieval popular heresies and the unique Mediterranean mindset protected the population. An inquisitor reported in 1569 that the Christianity of the Catalans caused wonder given how they lived adjacent to and dealt daily with active heretics without adopting their beliefs.
6. The Impact on Literature and Science
State censorship and the Indexes of Prohibited Books attempted to control intellectual life, though foreign imports and publishing abroad routinely bypassed restrictions.
Faced with the discovery of Protestants, Regent Juana issued a radical decree tightening pre-publication and post-publication censorship in Castile on 7 September 1558. The decree banned importing foreign-printed books in Spanish, required licenses from the council of Castile, and mandated checking manuscripts both before and after publication.
- Check and censor manuscripts both before and after publication.
- Ensure all booksellers keep a copy of the Index of Prohibited Books by them.
The 1559 Index compiled by Fernando de Valdés prohibited approximately seven hundred books through a rushed compilation largely copied from foreign indexes. Seventy percent of the entries in the 1559 Index were drawn directly from previous indexes from Louvain, Portugal, Paris, and Venice, targeting heresiarchs, vernacular bibles, vernacular devotional works, and anti-Catholic books.
Spanish writers frequently bypassed domestic censorship and delays by publishing their works abroad in France, Italy, or the Netherlands. In the late sixteenth century, at least sixty leading Spanish writers published their works in Lyon rather than in Spain. Printers and authors preferred foreign presses because of better quality and fewer restrictions.
Academic rivalry and personal malice at the University of Salamanca led professors to use the Inquisition against colleagues interpreting Scripture. Luis de León was imprisoned for four years, eight months, and nineteen days in the cells of the tribunal at Valladolid before being released and returning to his university rostrum.
7. The End of Morisco Spain
Generations of forced assimilation, cultural resistance, and the 1609-1614 expulsion decree systematically eradicated the historic Muslim population of Spain.
The end of the kingdom of Granada in 1492 transitioned Muslims from an independent nation into a minority known as Mudéjares. Their initial guaranteed freedoms were gradually eroded into forced baptisms and cultural eradication. A royal decree in 1502 forced all Mudéjares in Castile to choose between baptism and exile. This effectively ended open Islam there and created the Morisco population.
A huge bonfire of Arabic books was ordered by royal decree in Granada in October 1501 to mark the end of the capitulations. Before that, 15,000 people in Málaga were subjected to brutal enslavement after its capture in 1487.
To survive decades of religious persecution, Moriscos utilized the Islamic dispensation of taqiyya. This allowed them to conform outwardly to Christianity while secretly maintaining their faith and customs.
Generations of escalating cultural oppression and religious friction exploded into the brutal Granada war of 1568-1570. Following its suppression, 80,000 Moriscos were forcibly expelled from Granada to Castile. This drastically increased the Islamic presence there and caused a surge in Inquisition trials. In the tribunal of Saragossa, Morisco trials jumped from 266 cases between 1540 and 1559 up to 2,371 between 1560 and 1614.
Driven by fears of uncontrolled population growth, security threats, and unassimilated religious separation, the Spanish crown decreed the total expulsion of all Moriscos. The duke of Lerma and King Philip III enacted the decree in 1609. The state rounded up and banished approximately 300,000 Moriscos from a total of some 320,000.
The first act of expulsion took place on October 2, 1609, when ships sailed from Denia in Valencia carrying five thousand Moriscos to Oran.
8. The Politics of Heresy
In 1827, the German historian Ranke argued that the Inquisition was an instrument of absolute monarchy. Pre-industrial Spain actually lacked unified judicial systems. The Holy Office was merely one royal and ecclesiastical court among many.
The Spanish Inquisition was not created to build a centralized state or extend royal absolute power, as traditional historians claimed.
The organization evolved slowly. In 1488, the central organization was vested in a council called the Suprema. Fernando de Valdés issued eighty-one clauses in 1561, creating a centralized organization.
Because Spain was not a unified country, you find the Inquisition constantly clashing with regional fueros, civil courts, and church entities. Its claims of a dual jurisdiction brought it into bitter conflict with local elites, particularly in the crown of Aragon and Catalonia.
In 1582, inquisitors entering the Vall d’Àneu in the Pyrenees were attacked by a gang of over forty clergy wearing red caps and feathers and carrying pistols.
The most famous jurisdictional clash involved Bartolomé de Carranza, the archbishop of Toledo. Archbishop Carranza was arrested by inquisitors in Torrelaguna on August 22, 1559, and subjected to years of confinement and a trial in Rome before dying in 1576.
9. Crime and Punishment
Inquisitorial trials relied on anonymous denunciations and property sequestration, utilizing torture as an investigative tool while rarely applying capital punishment.
You find that the Holy Office depended heavily on public denunciations. Neighbors, family members, and personal rivals frequently used these edicts of faith to settle private grievances and community disputes. Informers were incentivized by the system. Anonymity protected hostile witnesses while shifting private vendettas into public judicial sanctions.
In Barcelona in 1607, a young wife denounced her husband and mother-in-law to the Inquisition, and subsequently denounced a neighbor who criticized her actions. Villagers in the 1480s asserted that false witnesses had caused 1500 people to be burnt in Castile.
Torture served strictly as an investigative tool to extract confessions rather than as a formal punishment. Tribunals inherited this practice under strict rules to avoid mortal danger. Confessions obtained under torture remained invalid unless ratified the following day. This rule prompted the legal subterfuge of suspending rather than concluding sessions to threaten continuation.
Tribunals used several methods during interrogations:
- the garrucha;
- the toca;
- the potro.
In Granada, 7 percent of the accused were tortured from 1573 to 1577. In Seville, 11 percent faced torture from 1606 to 1612. Jacob Petersen, a twenty-year-old sailor from Dunkirk, was stripped, bound, and given repeated turns of the cord by the Canaries tribunal in November 1597 until he confessed.
The vast majority of those convicted received non-lethal penalties. Sentences combined spiritual and corporal penalties, requiring penitents to wear the sanbenito as a mark of infamy. Only relapsed or unrepentant heretics were relaxed to the secular arm for execution. Across nineteen tribunals between 1540 and 1700, officials executed 1.8 percent of the condemned. A maximum of 3,000 persons are estimated to have suffered death during the entire history of the tribunal.
At the Granada auto on May 30, 1672, Alonso Ribero was sentenced to four years of banishment, six years in the galleys, and one hundred lashes for falsifying documents.
The auto de fe evolved from a simple, highly efficient mass reconciliation ceremony into an elaborate, costly public theatrical spectacle. Early autos processed hundreds of penitents quickly through basic religious rites without major pageantry. On February 12, 1486, the Toledo tribunal reconciled 750 judaizers in a single morning, finishing the entire process by two o'clock in the afternoon. By the late sixteenth and seventeenth centuries, public autos became massive, highly budgeted state productions held in main public squares. The Córdoba tribunal spent 5,700 ducats on its auto of May 3, 1655.
10. The Image and Reality of Power
The terrifying reputation of the Inquisition was largely a myth forged by northern European propaganda and dramatic fiction, contrasting sharply with its rural impotence.
Francisco Peña argued in 1578 that punishment was meant to put fear into others, yet police reality in Spain differed. Many stable Spanish communities felt no fear of the Holy Office and treated it with indifference.
In 1632, the parish priest of Taús asserted that he did not recognize the Inquisition and did not give a fig for it. The tribunal proved powerless to take any action against him.
Fernando de Valdés took over the Inquisition in 1547 and revived the declining tribunal. He used the discovery of Protestants to secure emergency powers and acted as the second founder of the institution.
Public autos de fe were rare events that competed with numerous community festivals. Jeroni Pujades had to wait until he was thirty-four to see his first public auto in 1602. Seville held a total of four public autos during the entire seventeenth century.
Northern European printers and foreign travelers created the popular image of the Inquisition as an instrument of terror. Philipp van Limborch published a History of the Inquisition in Amsterdam in 1692 with engravings that became widely reproduced sources. Voltaire published Candide in 1759, featuring satirical commentary on an auto de fe.
10 Key Ideas
- Pre-modern Iberian society was divided among multiple cultures and faiths, with Christian Spain holding a Christian majority alongside significant Muslim and Jewish populations.
- The expulsion of Spain's Jews in 1492 and the earlier massacres of 1391 created a vast converso population while uprooting Sephardic communities across Europe.
- The establishment of the Holy Office in 1478 aimed to police converted Jews, relying on dubious hearsay, swift trials, and local institutional force.
- The tribunal survived through unswerving royal backing and manufactured crises, despite facing severe regional resistance, corruption, and constitutional limits.
- Protestantism failed to penetrate Spain due to unique Mediterranean resistance and ruthless repression directed by Charles V against small domestic cells.
- State censorship and the Indexes of Prohibited Books attempted to control intellectual life, though foreign imports and publishing abroad routinely bypassed restrictions.
- Generations of forced assimilation, cultural resistance, and the 1609-1614 expulsion decree systematically eradicated the historic Muslim population of Spain.
- The Spanish Inquisition was not created to build a centralized state or extend royal absolute power, as traditional historians claimed.
- Inquisitorial trials relied on anonymous denunciations and property sequestration, utilizing torture as an investigative tool while rarely applying capital punishment.
- The terrifying reputation of the Inquisition was largely a myth forged by northern European propaganda and dramatic fiction, contrasting sharply with its rural impotence.