Which literary work features the character Quixote?

The character Quixote is featured in "Don Quixote," which is a novel written by Miguel de Cervantes. This work is widely regarded as one of the foundational pieces of Western literature and is often credited with originating the modern novel. The story follows the adventures of an aging nobleman, Don Quixote, who becomes enamored with chivalric romances and sets out to revive knighthood, leading to a series of humorous and poignant encounters. The novel explores themes of reality versus idealism, the nature of sanity, and the power of imagination, making it a crucial study in both literary history and character development.