Medici mystery reinvestigated

A new study of the deaths of Francesco de' Medici and his wife Bianca Cappello seems to suggest that the couple died of acute arsenic poisoning rather than from malaria as is generally believed.

The study has been carried out by Italian forensic scientists who point to Francesco's brother, Cardinal Ferdinando as the culprit who worked with de Medici's beard hairs with some skin attached. (Click "original article" below.)

Of further interest are comments by Gino Fornaciari, Professor of History of Medicine at the University of Pisa, who disputes the research: http://www.bmj.com/cgi/eletters/333/7582/1299.