Six men scattered across Italy share something extraordinary with Leonardo da Vinci: the same Y chromosome that passed, father to son, through at least 15 generations of the da Vinci family.

Historians dedicated to tracing Leonardo da Vinci’s family tree have uncovered 14 living relatives of the Renaissance great in a project that has been in the works for nearly a decade. While Leonardo ...

An extensive reworking of the family tree of Leonardo da Vinci connects an unbroken male line that extends from the artist’s grandfather to 14 living descendants—a 690-year span that encompasses 21 ...