Portrait of Louis IX
What he really died of Louis IX, king of France became, after the canonization, San Luigi ?
As is known, he died under the walls of Tunis after the eighth crusade suffering from an unspecified disease ( see also https://www.pilloledistoria.it/4256/storia-antica/alessandro-magno-era-ubriacone).
Historians agreed that it was plague, then very frequent, but a recent study denies it.
Philippe Charlier, paleoanthropologist specializing in the analysis of the human remains of historical figures, after having subjected the jaw of the sovereign to the scanner and at carbon 14, he concluded that it was instead scurvy.
The definitive answer to the age-old question would therefore be found in the royal find, preserved in the Parisian cathedral of Notre-Dame.
According to the scholar, scurvy attacked the gum and then the king's bone, which would gradually weaken until he succumbed at the age of only 56.
It was the year 1270 and scurvy was quite widespread at the time.
This disease was due to a strong vitamin C deficiency in the body and, in the most serious cases, could lead to death.