Casimir IV Jagiellon's "Curse"

After archaeologists opened the tomb of King Casimir IV Jagiellon in 1973, a mysterious "curse" emerged, resulting in the deaths of 15 people who had worked with the Polish ruler's remains. Casimir, born in 1427, defeated the Teutonic Order and established his family as a prominent European dynasty. The so-called curse was later identified as the deadly fungus Aspergillus flavus, present in ancient corpses and tombs, causing illnesses and fatalities among those exposed to the decomposed remains.