A millenium ago, there were two kings ruling over the lands, before they were divided according to bloodline; one was called the Egg King, for he had all of the chickens in the land. The other was the Bread King, for he possessed all of the wheat fields.
Now, through the body-strewn fields of these rival kings, there was a lone, haggard peasant. By day, he harvested the entirety of the Bread King's crops. By night, he collected all of the eggs the Egg King's chickens had laid. Yea, for the Kings had insufficient funds to pay for peasants; their funds primarily went towards mercenaries, foreign and domestic.
One day, coming back to his wife, he heard tremendous news- that his daughter was ordered give her hand in marriage to the Egg King's prince, while his only son was to marry the Bread King's princess.
He sought out the services of a nearby wise woman, who recommended to him a necromancer who lived by himself in the forest, without wearing clothes or speaking to anyone.
Now, this necromancer took him unawares, killing him, but raising him as a surly spirit; he would prepare eggs with bread until time itself gave out; in this way, the Egg King and Bread King were reconciled, and peasants and workers steadily trickled into their lands, hearing of food and abundance.
But the spirit of the fortress? He cannot leave. The day he leaves, the old war will return.