u/Effective-Basil-1257

Recently I came across a 2024 Spanish documentary and related genetic research (from the University of Granada and RTVE) claiming that DNA analysis of remains attributed to Christopher Columbus and his son suggests a profile “compatible with Sephardic Jewish origins” and a broader western Mediterranean background. At the same time, the traditional historical consensus still holds that Columbus was most likely born in Genoa or the Ligurian region, based on archival records, contemporary documents and his own references to being from Genoa.

I would like to ask how this DNA-based claim is evaluated from a historical and methodological perspective. How reliable is this type of genetic evidence when it comes to determining an individual’s origin in the 15th century? Does this research significantly challenge the traditional Genoese origin theory or is it generally considered too speculative compared to the documentary evidence?

More broadly, how do historians weigh genetic findings against archival and textual sources in cases like this? Does the 2024 study meaningfully shift the balance of probability away from Genoa or does Genoa remain the most likely place of origin despite these new claims?