Final answer:
King Henry III's body was buried in the royal necropolis of France, which is also known as the abbey. This site is where the kings of France and their families were buried for centuries, but during the French Revolution, the tombs were opened and the bodies were moved to mass graves.
Step-by-step explanation:
King Henry III's body was buried in the royal necropolis of France, which is also known as the abbey. This site is where the kings of France and their families were buried for centuries. However, during the French Revolution, the tombs were opened and the bodies were moved to mass graves. Most of the kings and queens of France from the 10th century until 1789 have their remains in this abbey.