Detailed Instructions: Generate a correct and concise answer for the question based on the words in the context.
Problem:Context : Johannes Dienhold (23 February 1901 -- 4 November 1990) was a highly decorated Hauptmann of the Reserves in the Luftwaffe during World War II. He was also a recipient of the Knight's Cross of the Iron Cross.
Question : What was the award received by Johannes Dienhold?
Solution:
Knight's Cross of the Iron Cross