Queen of France, secretly in love with the Duke of Buckingham, targeted by Richelieu's plot to expose her alleged infidelity and undermine the crown.
Their secret romance becomes the basis of Richelieu's political pressure.
The plot states that Constance is involved in the dangerous relationship between Anne d'Autriche and The Duke of Buckingham.
Constance serves as a trusted personal link to the queen.
Constance's profile identifies her as Queen Anne's seamstress and confidante, while the plot places her inside Anne's secret relationship.
D'Artagnan becomes an agent in the queen's political predicament.
Louis XIII sends D'Artagnan to England to verify whether Buckingham possesses the diamond necklace connected to Anne.
Their royal marriage is placed under pressure by the necklace rumor.
The plot identifies Anne d'Autriche as the Queen of France and describes Louis XIII as ordering her to wear the necklace at Gaston's wedding.
Richelieu weaponizes the alleged affair against the queen.
Richelieu uses rumors that Anne gave Buckingham a diamond necklace to place her under pressure.
Explore the full interactive character relationship map of The Three Musketeers: D'Artagnan
Related entry on Wikidata (Q151209), public domain (CC0).