Meet the incredible woman who saved Portugal's Jews

With the Inquisition active throughout much of Europe, the first half of the 16th century was a perilous time for Jewish people. Andreé Aelion Brooks explores how the fabulously wealthy Doña Gracia worked tirelessly to protect her community

A collage of images showing a woman in a red and brown dress, with her arms around a small child to her left. Behind them is a large building, some ships and a crowd of people

Published: January 21, 2026 at 3:30 PM

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Still in her 20s, Gracia Mendes Nasi (Nacy), better known as Doña Gracia, was recently widowed and fabulously rich. She should have been able to live in comfort for the rest of her life. Her husband, Francisco Mendes, a spice dealer and banker, had divided his wealth in his will between Gracia and his brother, Diogo. Yet without her husband’s protection, even her money could not shield her from a looming crisis.

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Indeed, being in possession of such a fortune in patriarchal and Catholic Lisbon in the middle of the 1530s was inherently dangerous for someone of Doña Gracia’s background. She was a converso, a term for a person forced to convert from Judaism. When the papal nuncio, an ecclesiastical diplomat, paid a visit to her palatial home in the old Jewish quarter of Lisbon, he demanded yet another bribe to keep the Inquisition from beginning work in Portugal.

The Inquisition, Gracia knew, rounded up conversos, who were then charged with being insincere Catholics and imprisoned. Whether this was true or not, their assets were confiscated. Furthermore, Doña Gracia certainly wasn’t sincere in her public faith. While she had married Francisco, who was also her maternal uncle, at Lisbon Cathedral, the ceremony had been preceded by a secret Jewish wedding.

Compounding Doña Gracia’s problems, representatives of the Portuguese king, John III, had also visited her. They told her they wanted to take her young daughter, Ana, to the palace to live as an adopted child of the royal family. According to local laws, the king could thus gain the use of any portion of the Mendes fortune that belonged to Ana.

It was clear Doña Gracia needed to make a new start elsewhere in Europe, but there was another problem: converso families were forbidden to leave Portugal. Demonstrating the skill that would make her an outstanding leader, she set two plans running simultaneously, an approach she would follow for the rest of her life.

Firstly, she sent a message to the king explaining that most of the fortune he sought was with her brother-in-law, Diogo, in Antwerp. To retrieve the fortune, she needed the king’s exemption to leave the country. And, of course, she could not leave her baby daughter behind. Nor her two nephews, who were registered to begin studies at university in Louvain. Nor her younger sister, Brianda, who was betrothed to Diogo.

She also contacted Diogo to bring one of his spice ships, pick up the family from Lisbon and take them to Antwerp. The greedy king, hoping to maximise the amount of money he could seize, agreed to let her travel.

An illustration of a man in a white and red apron, a tall white coned hat, and holding a stick in one hand. Behind him, there is a large building with many windows

A depiction of a man condemned to be burned on the orders of the Inquisition (Image by Getty Images)

But Doña Gracia had no intention of giving up her fortune so easily. Before departing for Antwerp, she had also set the second part of her plan in action. She had applied to the Vatican for a ‘Safe Conduct’, a super-passport valid throughout Christian Europe and which overrode any local laws preventing someone from travelling abroad. Throughout her life, Doña Gracia believed in doing what she could to maximise her chances of success.

Her skills went beyond protecting her own family. Not only did she take the helm of her late husband’s business, an unusual enough development in itself in the late Renaissance era, but she assumed a leadership role within the converso community.

With the threat of the Inquisition looming, Doña Gracia began to expand a nascent escape network that spirited members of the community out of danger and helped them travel to the Ottoman empire, which offered a haven for Europe’s Jewish community. In 1536, with the formal establishment of the Portuguese Inquisition, the situation for conversos in the country grew even more perilous.

Speaking truth to power

In 1553, Doña Gracia too would relocate to Constantinople (modern-day Istanbul), but in the latter half of the 1530s her focus was on building a new life in Antwerp. Yet here, she encountered many of the same problems she had faced in Portugal. The rulers, Holy Roman Emperor Charles V, and his sister, Mary of Austria, who acted as governor of the Habsburg Netherlands, were quick to pick up where the Portuguese king had left off.

The royal duo tried to pledge young Ana to a marriage that would be advantageous to them. Summoned to Mary’s palace to approve the match with Don Francisco D’Aragon – an illegitimate Spanish nobleman and descendant of the royal house of Aragon – Doña Gracia played for time, repeatedly implying she was sick. But she was so opposed to the union that she was reported as saying she would rather see her daughter drown – an audacious and insulting remark.

Doña Gracia didn’t back down. She told Mary that she was furious about how Ana’s selected suitor had blamed the continuing persecution of conversos on Doña Gracia’s own obstinacy. Doña Gracia’s confrontational manner shocked Mary, a blue blood who had been queen consort of Hungary and Bohemia before she was widowed and became governor. Once again, Doña Gracia was forced to leave, fleeing to the Republic of Venice in 1544.

A painting showing a large snaked line of people processing through a town square, surrounded by white building with blue and orange roofs. A crowd watches on as hundreds of men in black cloaks walk behind one another

An 18th century depiction of the procession of criminals sentenced by the Inquisition of Lisbon. As the persecution intensified, Doña Gracia helped many to flee to Constantinople (Image by Getty Images)

Compounding her difficulties, Doña Gracia did not even have the support of her own family. While in Antwerp, Diogo had died and named Doña Gracia as the guardian of his infant daughter rather than the child’s own mother – his wife and Doña Gracia’s sister, Brianda, who was talked of as untrustworthy. This so angered Brianda that, when both were living in Venice, she betrayed Doña Gracia as a secret Jew. In 1549, Doña Gracia again had to flee, this time to Ferrara, a tolerant duchy in northern Italy.

Throughout, Doña Gracia continued to be a leader among her people, despite facing many setbacks. At one point, she helped lead a boycott of the Italian port of Ancona in retaliation for the burning of more than 20 conversos by the Italian Inquisition – an outrageous act even by the standards of the era. But the boycott was not a success in the long run because the Jewish merchants in the Ottoman empire who used the port could not agree on a combined strategy. Doña Gracia also failed in efforts to persuade the Venetians to give the conversos one of their lagoon islands as a place to settle.

Life in the open

But Doña Gracia’s sheer persistence also paid off. In 1553, she settled in Constantinople with her entourage. Here, she could live publicly as a Jew. Moreover, she persuaded Suleiman the Magnificent, sultan of the Ottoman empire, to grant her a long-term lease on Tiberias (in present-day Israel). She helped finance the rebuilding of a city that nestles on the western shore of the Sea of Galilee, and it became a refuge for those conversos wishing to live in their own semi-autonomous area.

Doña Gracia thus headed one of the earliest attempts to found a modern Jewish state in the Middle East. Her efforts here likely saved a significant portion of the ethnic Jewish world at a critical juncture in its history. She planned to settle in the region herself and built a mansion in Tiberias, but she died in Constantinople in 1569.

In the years since, knowledge of Doña Gracia’s remarkable life has gradually faded, but that may be changing. Four years ago – during a period when the State Archives in Modena, northern Italy were closed because of the pandemic – archivist Alberto Palladini took advantage of the peace and quiet to clean out a box of old letters. It included two from Doña Gracia. These showed she spelled her last name as Nacy, not Nasi as the historical record currently suggests.

It’s a small detail, but significant, if only because it hints at the possibility of further revelations should researchers go looking, which seems likely given the current interest in the lives of powerful women whose place in history has been under-appreciated.

As for Doña Gracia herself, she certainly never sold herself short. As the seal for her correspondence, she used the Lion of Judah. This suggests she saw herself not just as a rich and successful businesswoman and philanthropist, but as someone descended from the House of David, a Jewish royal.

Andrée Aelion Brooks is a journalist and lecturer. Her books include Russian Dance: A True Story of Intrigue and Passion in Stalinist Moscow (John Wiley & Sons, 2004)

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This article was first published in the January 2026 issue of HistoryExtra magazine

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