Explanation: The
Underworld and Hells have been separated. Generally speaking, the
"underworld" is more of a benign place where all souls (good or bad) are
sent. Hells are places of punishment, torture, sorrow, and pain.
There are some areas where the distinction is less clear. I have tried
to place those in the category that fits best with the description(s)
contained within.
The category "Guardians and Other
Inhabitants" includes several deities. These gods are not directly
connected to ruling the Underworld/Hell but are now residents within it.