The Tragedy of Muno Marquisate

Background
The Tragedy of Muno Marquisate was a theatrical play which tells a highly dramatized account of the fall of the Muno Marquisdom at the hands of the No-Life King.

Plot
The sorcerer Zen falls in love with Marquis Muno's fiancée, Princess Liltiena, and the two run away together. As punishment, the Marquis executes's Zen's entire family then gives chase with his knights. The Marquis eventually corners the lovers on top of a cliff, but on learning of the fate of his family, Zen unleashes his magic and turns the tables on the Marquis. Just as Zen is about to take his revenge, his is betrayed by their maid and is fatally stabbed in the back with a poison dagger. Refusing to return to the Marquis, Princess Liltiena takes the dagger and kills herself.

Not long afterwards, Zen rises from his grave as the No-Life King and avenges himself upon the Marquis's family and anyone who aided them, murdering them one by one. But just as Zen was about to kill the Marquis himself, a Holy Knight appears and defeats him. Just before his death, Zen uses the last of his magic to curse the Marquisate. Unwilling to see his land and subjects suffer for his misdeeds, the play ends with the Marquis noblely sacrificing his life by taking the curse upon himself, thus saving his people.

Differences with History

 * Princess Liltiena was both a commoner and Zen's legitimate wife.
 * The No-Life King completed his revenge against the Marquis without interference.
 * After the Marquis's death, the the marquisate was left in ruin and the curse would continue to kill anyone who tried to claim lordship over the territory.
 * Though it is possible a Holy Knight did defeat The No-Life King at some point, it should be obvious he was not permanently killed until his later confronation with Satou.