My Husband the King Gave My Crown to His Mistress, So I Destroyed His Kingdom

Princess Isabella marries King Edward, supporting his reign with her dowry, ten thousand knights, and lucrative ports. But Edward gives her sacred crown to his mistress, Vivian, and allows her to seize property, sell titles, and betray the kingdom's interests. Feigning submission, Isabella secretly gathers evidence and exposes them at the nobles' assembly.