Question: Who ran the company that produced the largest pieces of artillery used during World War I by barrel length?
Sentence (from "Gustav Krupp von Bohlen und Halbach"): Gustav Krupp von Bohlen und Halbach (7 August 1870 – 16 January 1950) ran the German Friedrich Krupp AG heavy industry conglomerate from 1909 until 1941.
Relevant evidence: Yes