Reckon it’s a different era with a different king whom is a descendant. I dont have any knowledge on the subject but i imagine it would take long enough for all your muscle and skin to decay to compost which is why i think this.
@FgoSegul it depends on the availability of scavenger/decomposer organism, wheather, temperature and humidity of the place where the corpse is though. If the situation is right, it can be pretty fast.