Man of La Mancha is a 1965 musical with a book by Dale Wasserman, music by Mitch Leigh, and lyrics by Joe Darion. It is adapted from Wasserman's non-musical 1959 teleplay I, Don Quixote, which was in turn inspired by Miguel de Cervantes and his 17th-century novel Don Quixote. It tells the story of the "mad" knight Don Quixote as a play within a play, performed by Cervantes and his fellow prisoners as he awaits a hearing with the Spanish Inquisition. Best Musical at the 20th Tony Awards, June 16, 1966 — hosted by George Abbott, Ginger Rogers at Rainbow Room, Rockefeller Center. Wiki link Wiki link