Ferdinand I of Naples, an illegitimate son of an Aragonese king, ruled Naples in the 15th century with a reputation for ruthless political control and deep paranoia toward rebellion. His reign was marked by repeated baronial conspiracies, which he crushed with a combination of military force, imprisonment, and public intimidation.

Some contemporary chroniclers and later Renaissance accounts describe Ferdinand as a ruler who kept his enemies close—sometimes very close. After suppressing plots against his throne, several nobles were allegedly imprisoned for decades, while others were executed in particularly brutal fashion. These stories, while difficult to verify in full detail, reflect the widely held perception of his court as one where mercy was scarce and loyalty was strictly enforced.

One of the most enduring and eerie traditions associated with Ferdinand is the Museum of Mummies within Castel Nuovo. According to historian Jacob Burckhardt and later writers, Ferdinand is said to have preserved the bodies of executed enemies, dressed them in their former clothing, and displayed them in staged settings—sometimes even at mock banquets. Whether literal or exaggerated, the image served a political purpose: to reinforce the idea that opposition to the crown ended not only in death, but in permanent humiliation.

Burckhardt famously summarized this reputation, noting that Ferdinand’s “pleasures” allegedly involved keeping opponents either securely imprisoned or preserved after death, presented as warnings to others. Visitors to his court were, according to tradition, shown these grim displays as a form of deterrence.