The Army Group German Crown Prince was a group that was under the command of the eldest child of which future German emperor?
Army Group German Crown Prince The Army Group German Crown Prince or Army Group B (German: "Heeresgruppe Deutscher Kronprinz") was an Army Group of the German Army, which operated on the Western Front under command of Wilhelm, German Crown Prince, between 1 August 1915 and 11 November 1918 during World War I.
Frederick William I of Prussia Frederick William I (German: "Friedrich Wilhelm I" ) (14 August 1688 – 31 May 1740), known as the 'Soldier King,' was the King in Prussia and Elector of Brandenburg from 1713 until his death, as well as the father of Frederick the Great. He was in personal union the sovereign prince of the principality of Neuchâtel.