Genetic Study Suggests Columbus Had Spanish-Jewish Origins, Not Italian

For centuries, the story was settled: Christopher Columbus was born in Genoa, Italy. His own will said so. Textbooks said so. The historical record, as far as anyone could prove, said so. But in December 2024, a team of Spanish geneticists led by forensic expert José Antonio Lorente announced findings that upended that certainty. After locating Columbus's remains in Seville Cathedral and analyzing DNA samples from his son Hernando and brother Diego, the researchers discovered something the explorer himself had apparently hidden: he likely carried Sephardic Jewish ancestry.

The genetic work was painstaking. The DNA had degraded over centuries, but the scientists managed to extract and study the Y-chromosome and mitochondrial DNA—the paternal and maternal lines that could be traced backward through time. What emerged from that analysis were genetic markers that matched populations of Spanish Sephardic Jews, not Italian populations. The discovery did not come from a single smoking-gun test but from a convergence of evidence that pointed in one direction: Columbus's roots were Spanish and Jewish, not Genoese.

This finding did not arrive in a vacuum. Scholars had been questioning the Genoese origin story for years. Francesc Albardaner, a former director of the Columbus Studies Centre in Barcelona, had argued that the Italian city could not have been Columbus's birthplace because it had neither a Jewish community nor a synagogue during his lifetime. Albardaner's research suggested instead that Columbus came from a family of silk weavers in Valencia and that he had deliberately concealed his Jewish identity out of fear. The timing made the stakes clear: in the late fifteenth century, Spain was in the grip of religious persecution. Jews faced conversion, expulsion, or the machinery of the Inquisition. For a man seeking royal patronage and planning an expedition of continental scope, revealing such an identity would have been ruinous.

Albardaner had written that Columbus was "Jewish in culture, in religion, in nation, and above all in heart," that his very writings overflowed with Jewishness. The genetic evidence now lent weight to what had been scholarly speculation. It suggested that Columbus had not simply hidden his faith but had lived a double life—a navigator and explorer on the public stage, a man of hidden ancestry beneath.

The broader historical context made this concealment plausible. The late 1400s were a period of systematic religious violence in Spain. Hundreds of Sephardic Jews were forced to choose: convert to Christianity, flee the country, or face persecution by the Inquisition. Columbus, if he was indeed of Jewish descent, would have been navigating this treacherous landscape at the very moment he was seeking support for his voyage. The Spanish monarchs who funded his expedition were the same ones overseeing the expulsion of Jews from their realm.

Columbus himself remains a figure of historical contradiction. He is remembered as the explorer who opened the Atlantic passage to the Americas on October 12, 1492, an expedition that reshaped the world and set in motion centuries of European expansion, conquest, and colonization. Yet even that claim has come under scrutiny. Recent research published in Nature suggests that the Rapa Nui people of Easter Island may have made contact with indigenous Americans roughly two centuries before Columbus sailed, based on genetic evidence showing that about ten percent of ancient Rapa Nui DNA came from indigenous American sources. The idea of Columbus as the discoverer of a new world has become more complicated.

Now his identity itself has shifted. The man who sailed under the Spanish flag, who wrote in Spanish, who sought the patronage of Spanish monarchs, appears to have been Spanish himself—and Jewish. The will that claimed Genoese birth may have been part of a carefully constructed fiction, a necessary erasure of self in service of ambition. The genetic study does not prove deception, but it does suggest that the historical record, as written by Columbus himself, was incomplete. What he chose to hide about his origins may tell us as much about the world he lived in as what he chose to reveal.