Who write the first book on forensic medicine?

The first book specifically dedicated to forensic medicine is often attributed to Fortunatus Fidelis in 1598 with his work "De Relationibus Medicorum et Chirurgorum in Causis Criminalibus" (On the Reports of Physicians and Surgeons in Criminal Cases).

However, it's worth noting that:

* Earlier texts touched upon aspects of forensic medicine, such as the legal and medical aspects of death investigations, even before Fidelis's book.

* Other authors around the same time also made contributions to the field, such as Paul Zacchias with his book "Questiones Medico-Legales" (Medico-legal Questions) in 1621.

Therefore, while Fidelis's book is often considered the first dedicated to forensic medicine, it wasn't a completely isolated event, but rather a culmination of earlier developments and a crucial stepping stone in the evolution of the field.