Oberst Ernst-Hasse von Langenn-Steinkeller (7 December 1916 - 5 September 2004) received the Ritterkreuz des Eisernen Kreuzes on 9 June 1944 as Rittmeister and Kommandeur Panzer-Aufklärungs-Abteilung 24 / 24.Panzer-Division. Previously, he also got the Deutsches Kreuz in Gold on 25 January 1943 as Kommandeur Kradschützen-Abteilung 4 / 24.Panzer-Division.
Source :
http://www.wehrmacht-awards.com/forums/showthread.php?t=75064