Harlot Queen by Hilda Lewis recounts the life of Isabella of France, the wife of Edward II of England. An unfortunate moniker to be known by but, desperate for love and comfort, she turns to a lover. Perhaps quite understandable when your husband forsakes the pleasures of the marital bed for intimate sport with other men.
These events occur at the tender age of 14 and, as she matures, her need to vengence against her husband's lovers grow and became an obsession. Mayhem is the result. When the royal family creates a disastrous situation amongst themselves, you can be sure that the common folk suffer the consequences as well.