Question: What is the name of one of Hitler's close associates that Ralf Georg Reuth wrote a biography of in 1992?
Sentence (from "Chaitanya Bhagavata"): The writing of Chaitanya Bhagavata was commissioned by Nityananda, who was the guru of Vrindavana Dasa Thakura and close friend of Chaitanya Mahaprabhu.
Relevant evidence: No