OR The death of Mufasa
could be written. Those are correct form.
To inanimate objects, a table for example, you would use "of", and not apostrophe:The leg of the table
, but not the table´s leg (the latter is wrong form.)
Some people would say that there´s nothing wrong with the "table´s leg" (apostrophe to inanimate things), but I learned this way. And there´s a tendency to use the way I learned.https://forum.wordreference.com/threads ... le.541681/