Researchers who study Columbus say the purported findings are of only limited significance, even if true: DNA evidence would show only Jewish heritage, not identity. And Columbus’ own writings express both Christian beliefs and praise for the decree expelling Jews from Spain.

Several countries disputed origins of Columbus, the divisive explorer who led Spanish-funded expeditions from the 1490s onward.

A new documentary explores 20 years of research into the navigator’s roots, suggesting his birthplace is in the ‘western Mediterranean’