Question: In what year was a commander of Ergänzungs-Jagdgruppe Ost who claimed a total of 212 aerial victories born?
Context: Lieutenant Viktor Georgiyevich Fyodorov (11 November 1885 - 4 March 1922) was a Russian World War I flying ace credited with five aerial victories while flying with the French military air service.  Having left Russia for Belgium in 1908, with a further move to France, Fyodorov was still living in the latter when World War I began.  On 21 August 1914, he volunteered for the French Foreign Legion, and served with them until wounded and invalided from infantry service.  After preliminary duty as a chauffeur, he became a pilot on 27 November 1915.  After acquiring Pierre Lanero as his mechanic, aerial observer, and gunner, Fyodorov scored three aerial victories in March 1916 with Lanero manning the Caudron's guns. Wilhelm Crinius (2 December 1920 – 26 April 1997) was a Luftwaffe fighter ace during World War II.  A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  Crinius is credited with 114 aerial victories claimed in approximately 400 combat missions.  He recorded 100 victories over the Eastern Front.  Of his 14 victories claimed over the Western Front, one was a four-engined bomber.  On 23 September 1942, Crinius became the only German fighter pilot to be awarded the Knight's Cross of the Iron Cross ("Ritterkreuz des Eisernen Kreuzes") and the Knight's Cross of the Iron Cross with Oak Leaves ("Ritterkreuz des Eisernen Kreuzes mit Eichenlaub") simultaneously. Friedrich-Karl "Tutti" Müller (25 December 1916 – 29 May 1944) was a German World War II fighter ace who served in the Luftwaffe from 1935 until his death on 29 May 1944.  A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  He is credited with 140 aerial victories claimed in more than 600 combat missions.  He claimed 8 aerial victories during the Battle of France, 89 on the Eastern Front, and 51 victories against the Western Allies, including 17 four-engined bombers. Helmut Bennemann (16 March 1915 – 17 November 2007) was a German air officer in World War II.  Serving in the Luftwaffe, he claimed 93 aerial victories in over 400 combat missions.  The majority of his victories were claimed over the Eastern Front.  Bennemann served as the commander of the JG 53 fighter wing. A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  German day and night fighter pilots claimed roughly 70,000 aerial victories during World War II, 25,000 over British or American and 45,000 over Soviet flown aircraft.  103 German fighter pilots shot down more than 100 enemy aircraft for a total of roughly 15,400 aerial victories.  Roughly a further 360 pilots claimed between 40 and 100 aerial victories for round about 21,000 victories.  Another 500 fighter pilots claimed between 20 and 40 victories for a total of 15,000 victories.  According to Obermeier, it is relatively certain, that 2,500 German fighter pilots attained ace status, having achieved at least 5 aerial victories.  453 German day and "Zerstörer" (destroyer) pilots received the Knight's Cross of the Iron Cross.  85 night fighter pilots, including 14 crew members, were awarded the Knight's Cross of the Iron Cross.  The list is sorted by the number of aerial victories claimed at night. This is a list of fighter aces in World War II from Germany.  A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  German day and night fighter pilots claimed roughly 70,000 aerial victories during World War II, 25,000 over British or American and 45,000 over Russian flown aircraft.  103 German fighter pilots shot down more than 100 enemy aircraft for a total of roughly 15,400 aerial victories.  Roughly a further 360 pilots claimed between 40 and 100 aerial victories for round about 21,000 victories.  Another 500 fighter pilots claimed between 20 and 40 victories for a total of 15,000 victories.  It is relatively certain that 2,500 German fighter pilots attained ace status, having achieved at least 5 aerial victories.  These achievements were honored with 453 German day and "Zerstörer" (destroyer) pilots having received the Knight's Cross of the Iron Cross.  85 night fighter pilots, including 14 crew members, were awarded the Knight's Cross of the Iron Cross. Kurt Welter (25 February 1916 – 7 March 1949) was a German "Luftwaffe" fighter ace and the most successful "Jet Expert" of World War II.  A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  He claimed a total of 63 aerial victories—that is, 63 aerial combat encounters resulting in the destruction of the enemy aircraft—achieved in 93 combat missions.  He recorded 56 victories at night, including 33 Mosquitos, and scored more aerial victories from a jet fighter aircraft than anyone else in World War II and possibly in aviation history.  However this score is a matter of controversy; research of Royal Air Force losses suggests Welter overclaimed Mosquito victories considerably. Hermann Graf (24 October 1912 – 4 November 1988) was a German "Luftwaffe" World War II fighter ace.  He served on both the Eastern and Western Fronts.  He became the first pilot in aviation history to claim 200 aerial victories—that is, 200 aerial combat encounters resulting in the destruction of the enemy aircraft.  In about 830 combat missions, he claimed a total of 212 aerial victories, almost all of which were achieved on the Eastern Front. Ergänzungs-Jagdgruppe Ost" (EJGr Ost) (Supplementary Fighter Group, East) was a fighter pilot training unit of the German Luftwaffe in World War II.  It was formed on 27 January 1942 in Krakau and renamed Jagdgruppe Ost" (JGr Ost) on 25 November 1942.  Its main purpose was to provide specialized training for new fighter pilots destined for the Eastern Front.  Training was provided by experienced pilots who were rotated in and out of this unit.  Commanders included Hubertus von Bonin, Hermann Graf, and Viktor Bauer. "Tenente" Luigi Olivari was a World War I flying ace who claimed 19 aerial victories.  His Spad VII stalled into a fatal crash on 13 October 1917.  Posthumously, he was awarded credit for eight aerial victories.
Answer: 1912