Question: What author wrote a story about a  Dutch-American villager attributed to fictional historian Diedrich Knickerbocker?
Sentence (from "The Sketch Book of Geoffrey Crayon, Gent."): The collection includes two of Irving's best-known stories, attributed to the fictional Dutch historian Diedrich Knickerbocker, "The Legend of Sleepy Hollow" and "Rip Van Winkle".
Relevant evidence: Yes