DNA cracks centuries-old murder mystery involving one of history's most famous families

Researchers at Yale University believe they've solved a centuries-old mystery over how a member of one of Italy's most famous families died. In a study published in the journal iScience, researchers analyzed ancient DNA from Grand Duke Francesco I de' Medici, the Renaissance ruler of Tuscany, who died suddenly in 1587. Francesco I de' Medici and his wife, Bianca Cappello, died a day apart after falling ill with intermittent fevers following a stay at a mosquito-filled villa — fueling centuries o