Klaus von Hohenloe (born: September 6, 1983 (1983-09-06) [age 41])[3], known for his Reddit commentary channels as Mainly Fact and to his community as Mainly Facts Guy or Mr. Facts, is an American YouTuber. However, he was contracted by an unknown entity which uploads a wide variety of Reddit commentary videos featuring his voice on this YouTube channel as well as on Mostly Facts. He is from Minnesota, United States.