...holy shit, just actually parsed this line.Sixty five years into his rule neighboring chieftains presented a suit to their king and he was reprimanded for excessive cruelty against his subjects, causing spiritual pollution in the region, and dishonouring his lady wife.
He was so cruel to his subjects that it caused regional spiritual pollution.
Which is to say he was so unjust that his neighbors couldn't stand the number of vengeful ghosts he was causing anymore and reported him.