TV-Series
Description
Jeanne de la Motte is a central antagonist whose ambitions and schemes have devastating consequences for the French royal court. She is a young woman of striking beauty, possessing an sharp intelligence and an almost limitless capacity for cunning and manipulation. Her defining trait is an overwhelming, insatiable ambition fueled by a deep-seated resentment of her impoverished upbringing. Though she is a descendant of the royal Valois line through an illegitimate branch, she grew up in poverty, begging in the streets. This experience instilled in her a powerful desire for revenge against the nobility and a relentless drive to reclaim the wealth and status she believes is her birthright.

Jeanne's primary motivation is to escape her lowly station and secure a life of immense luxury and power at any cost. She is willing to lie, steal, manipulate, and even orchestrate murder to achieve her goals. Her actions are not born of desperation but from a calculated, narcissistic belief that the world should conform to her desires. She feels entitled to the riches of the crown and is not burdened by any sense of morality or loyalty, viewing other people simply as pawns in her schemes.

In the story, Jeanne is the mastermind behind the infamous Affair of the Diamond Necklace. Her plan is to pose as a confidante of Queen Marie Antoinette to trick Cardinal de Rohan into purchasing an exorbitantly expensive diamond necklace on the Queen's behalf. She forges letters from the Queen and even hires a prostitute to impersonate her during a clandestine nighttime meeting with the Cardinal. Once the necklace is in her possession, her husband, Nicholas, disassembles it and sells the diamonds in Paris and London. This scheme, when exposed, becomes a major public scandal that severely damages the reputation of Marie Antoinette and contributes to the growing public distrust of the monarchy. When put on trial, Jeanne displays her cunning by falsely testifying that she and the Queen were lovers, a sensational lie that the public readily believes, further ruining the Queen's image.

Jeanne has several key relationships that are defined by her selfishness. Her younger half-sister, Rosalie Lamorlière, genuinely loves her, but Jeanne sees her as a threat. Fearful that Rosalie might expose her past and ruin her ascent, Jeanne discards her and later cruelly orders her husband to kill their own family member to silence her. Her relationship with her husband, Nicholas de la Motte, is complex. While she often uses and manipulates him, he remains utterly devoted to her. In a final, twisted act of love, after they are cornered by Oscar François de Jarjayes, Jeanne kills Nicholas herself. She does this not out of cruelty, but because she does not want to die alone and cannot bear the thought of him living on without her or being executed for her crimes. He willingly accepts his death, and they share a final, passionate moment before their demise, revealing a deep, if destructive, bond between them.

Throughout the series, Jeanne's ambition only grows, never wavers, and ultimately leads to her ruin. Starting as a social climber, she evolves into a master conspirator willing to topple the monarchy for personal gain. Even when facing capture and the brand of a thief, she does not repent but instead continues to weave lies to destroy her enemies. Her development is not one of redemption but of a complete descent into unscrupulous villainy, driven by her wounded pride and hunger for power. She shows rare glimpses of humanity, such as a moment of hesitation when ordered to kill an innocent woman and a lingering, buried affection for Rosalie, but these are quickly overshadowed by her self-preservation and malice. Her notable abilities include her remarkable beauty, which she uses as a tool of seduction and distraction; her talent for deception and forgery; and her skill as an actress, able to convincingly portray a noblewoman and a trusted friend to the Queen. She is a tactical genius of a sort, able to weave an incredibly complex and nearly successful plot that nearly brought the French monarchy to its knees.