The Duchess requested Don Quijote to provide a detailed portrayal of Mrs. Dulcinea del Toboso, expressing her curiosity about the woman's vibrant memory, beauty, and distinctive traits. This highlights the Duchess's fascination with the idea of Dulcinea, who exists more in Don Quijote's imagination than in reality.

This interaction showcases the theme of idealized love in "Don Quixote." It underscores how characters project their desires and fantasies onto others, as the Duchess becomes captivated by the heroic ideals Don Quijote embodies, representing the deeper exploration of chivalry and illusion throughout the narrative.