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The 1496 Forced Conversion: When Portugal Erased Its Jews

I have stood with groups in a lot of places where terrible things happened. But there is something particular about explaining the 1496 edict, because it did not end in a single act of violence you can point to. It ended in something quieter and, in a way, harder to take in: a whole people declared to no longer exist, on paper, by decree. Their faith was not killed in one place. It was made illegal everywhere at once, and the people themselves were kept.

This is the event that everything else in Jewish Portugal flows from. Belmonte, the crypto-Jews, the synagogue that took five hundred years to reopen, all of it starts here. So let me tell the story carefully, because it deserves to be told carefully.

How Portugal Became a Refuge First

To understand 1496, you have to start a few years earlier, in Spain. In 1492, Ferdinand and Isabella issued the Alhambra Decree, expelling the Jews of Spain. Convert or leave. Roughly a hundred thousand Spanish Jews chose exile rather than abandon their faith, and many of them crossed the border into Portugal.

King Joao II of Portugal allowed them in, for a fee. For a few years, Portugal became a refuge, a place where Sephardic Jews who had refused to convert in Spain could continue to live as Jews. The community grew. There was, briefly, a sense that Portugal might be the place that did not follow Spain down that road.

That hope did not survive the change of kings.

King Manuel and the Marriage That Sealed It

When Manuel I came to the throne in 1495, he inherited a kingdom with a large and visible Jewish population, including the recent arrivals from Spain. By many accounts, Manuel had no personal hostility toward the Jews, and he understood their value to the kingdom. But he wanted something else more.

Manuel wanted to marry Isabella, the daughter of Ferdinand and Isabella of Spain, a union that would tie the two Iberian crowns together. The Spanish monarchs set a price. They would not give their daughter to a king whose realm still sheltered the Jews they had just expelled. The condition was explicit: Portugal must rid itself of its Jews.

In December 1496, Manuel issued the edict. All Jews were ordered to convert to Christianity or leave the kingdom, with a deadline set for late 1497. On its face, it looked like the Spanish model: a choice between conversion and exile. But Manuel did not want them to leave. He wanted their skills, their commerce, their place in the kingdom. He wanted the people without the Judaism. And so what actually happened was far worse than the edict’s words suggested.

What the Forced Conversion Actually Looked Like

As the deadline approached in 1497, Manuel made leaving nearly impossible. He restricted the ports from which Jews could depart, funneling everyone toward a single point, Lisbon, where the promised passage failed to materialize for most.

Then came the cruelest measure. In the spring of 1497, Manuel ordered that Jewish children, by some accounts those between the ages of four and fourteen, be taken from their parents to be baptized and raised as Christians. Families were torn apart in the streets. Parents faced an unbearable choice: convert themselves so they would not lose their children, or watch their children be carried off. Contemporary accounts describe scenes of anguish that are hard to read even now, parents who took their own children’s lives rather than surrender them, families clinging together as they were dragged apart.

For most, there was no real choice. Tens of thousands were baptized by force, many of them without consent, some literally dragged to the fonts. Overnight, by royal will, there were officially no Jews in Portugal. They had not left. They had not, in their hearts, converted. They had been declared Christians against their will and kept in the country as New Christians, conversos.

I always slow down at this point with a group, because the temptation is to move past it quickly. But the dignity of these families requires that we sit with what was done to them. They did not abandon their faith. It was taken from them by force, in public, with their children used as leverage. That is the wound at the root of the whole story.

What “New Christian” Really Meant

The forced conversion did not make these families Christian in any real sense. It made them a suspected class. They were now officially Catholic, which meant any continued Jewish practice was not merely forbidden, it was heresy, punishable by the machinery of the church.

This is the trap Manuel built. By converting them by force rather than expelling them, he created a population that was Jewish in identity and Christian by law, watched, distrusted, and exposed to suspicion for generations. In 1536, decades later, the Portuguese Inquisition was established, and these same New Christian families and their descendants became its primary targets. To light a Shabbat candle, to avoid pork, to wash a body for burial in the Jewish way, any of it could bring an accusation.

And yet many of them kept their faith anyway. Quietly, in closed rooms, behind shuttered windows. The crypto-Jewish communities of Portugal, the conversos who became famous in places like Belmonte, exist because of 1496 and 1497. The forced conversion was meant to erase Jewish Portugal. Instead it drove it underground, where in some places it survived for five hundred years.

Why This History Matters for a Heritage Visit

When you travel through Portugal with this history in mind, the country reads differently. The doorways in old Jewish quarters, the street names, the synagogue in Tomar that survived only because it was repurposed, all of it sits in the shadow of 1496. You are not looking at a story of a community that drifted away. You are looking at a community that was erased by decree and refused to actually disappear.

That is why I think it matters to learn this history before you go, and to handle it with care once you are there. The places connected to the forced conversion are not just historical sites. They are the markers of an injustice that Portugal itself eventually acknowledged, most formally in the 2015 Sephardic citizenship law that offered to welcome the descendants back. The full sweep of that story, from erasure to return, is laid out in our guide to Jewish heritage in Portugal, and its most painful single chapter is the subject of our piece on the Lisbon massacre of 1506, which fell on the converted families just nine years later.

We build itineraries that hold this history with the seriousness it deserves, led by guides who understand what these sites mean to Jewish visitors. For groups of fifteen or more, the group leader travels free, which helps as you plan with your congregation. You can see how we structure a Portugal journey on our Portugal destination page or learn how group travel works on our group heritage tours page.

FAQ: The 1496 Forced Conversion in Portugal

What was the 1496 edict in Portugal?

In December 1496, King Manuel I issued an edict ordering all Jews in Portugal to convert to Christianity or leave the kingdom by late 1497. It was issued as a condition of his marriage alliance with Spain, whose monarchs demanded that Portugal rid itself of the Jews they had expelled in 1492. Although the edict was framed as a choice, Manuel intended to keep the Jewish population in the country rather than let it leave.

How was the forced conversion of 1497 different from Spain’s expulsion?

Spain’s 1492 decree genuinely offered exile, and about a hundred thousand Jews chose to leave rather than convert. Portugal’s measures in 1497 were designed to prevent departure. Manuel restricted the ports, and in the spring of 1497 ordered Jewish children seized from their parents for baptism. Most families were forced into conversion rather than allowed to emigrate, which is why Portugal produced large crypto-Jewish communities while many Spanish Jews left as openly practicing Jews.

Why did King Manuel force conversion instead of expulsion?

Manuel wanted the marriage alliance with Spain, which required removing the Jews, but he also wanted to keep the Jewish population’s commercial and professional contribution to his kingdom. Forcing conversion let him satisfy Spain’s demand on paper while keeping the people in Portugal. The result was a population that was officially Christian but Jewish in identity, which set the stage for generations of suspicion and the later Inquisition.

What happened to the forcibly converted Jews afterward?

They became known as New Christians or conversos. Officially Catholic, they were watched and distrusted, and any continued Jewish practice was treated as heresy. After the Portuguese Inquisition was established in 1536, these families became its primary targets. Many nonetheless preserved their Judaism in secret, creating the crypto-Jewish communities, most famously Belmonte, where hidden practice survived for roughly five hundred years.

Where can you encounter this history in Portugal today?

In the old Jewish quarters of cities like Lisbon, in surviving sites such as the Tomar synagogue, and above all in Belmonte, where the descendants of forcibly converted families returned to open Jewish practice. Portugal formally acknowledged the historical wrong with its 2015 Sephardic citizenship law. A heritage journey that includes these sites, led by a knowledgeable guide, lets a group encounter the full arc from forced conversion to recognition and return.


This is heavy history, and I do not present it lightly. If your community wants to walk through it in Portugal, with the dignity and context it requires, I would be honored to help you plan that journey.

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