The Sundered Realms were once a collection of several wealthy kingdoms and city-states, similar to the Hundred Kingdoms, with many of them ruled by collective magocracies. The realms were ‘sundered’ when the Necromancer King conquered many of the kingdoms and city-states a thousand years ago. The Necromancer King was eventually defeated, but in his death, the Necromancer King uttered a curse so that his undead minions would ravage the surviving kingdoms until they stood no more. The land withered under the sundering and became a desolate wasteland.