Final answer:
Robert Penn Warren wrote the novel 'All the King's Men,' not to be mixed up with the historical acting company associated with Shakespeare or unrelated cases of stolen manuscripts like those of Henry King.
Step-by-step explanation:
The novel All the King's Men was written by Robert Penn Warren. This book should not be confused with the historical acting company known as the King's Men, which was connected to William Shakespeare, an actor, playwright, and business partner in the company that was formerly known as the Lord Chamberlain's Men and renamed the King's Men in 1603. The confusion might arise from the theater group's name being similar to the title of Warren's novel. Furthermore, instances of literature published without the author's consent, such as the case with Richard Marriott and Henry Harringman stealing and publishing Henry King's Poems, should be distinguished from Warren's work which is a separate literary piece entirely.