Heinz Gropp was a Obersturmführer

Obersturmführer

Obersturmführer was a paramilitary rank of the Nazi party that was used by the SS and also as a rank of the SA. Translated as “Senior Assault Leader”, the rank of Obersturmführer was first created in 1932 as the result of an expansion of the Sturmabteilung and the need for an additional rank in...

 (First Lieutenant) in the Waffen SS during World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. He was awarded the Knight's Cross of the Iron Cross

Knight's Cross of the Iron Cross

The Knight's Cross of the Iron Cross was a grade of the 1939 version of the 1813 created Iron Cross . The Knight's Cross of the Iron Cross was the highest award of Germany to recognize extreme battlefield bravery or successful military leadership during World War II...

. Which was awarded to recognize extreme battlefield bravery or successful military leadership by Nazi Germany

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

 during World War II.

Obersturmführer Heinz Gropp was awarded the Knight's Cross when in command of the 9th SS Flak Battalion on the 6 May 1945. There is some dispute over the award as it was authorised by Oberstgruppenführer

Oberstgruppenführer

Oberst-Gruppenführer was the highest commissioned SS rank with the exception of Reichsführer-SS, which was a special rank held by Heinrich Himmler...

 Sepp Dietrich

Sepp Dietrich

Josef "Sepp" Dietrich was a German SS General. He was one of Nazi Germany's most decorated soldiers and commanded formations up to Army level during World War II. Prior to 1929 he was Adolf Hitler's chauffeur and bodyguard but received rapid promotion after his participation in the murder of...

 in his position as commander of the German Sixth SS Panzer Army

German Sixth SS Panzer Army

The 6th Panzer Army was a unit of Wehrmacht Heer, formed in the Autumn of 1944. The 6th Panzer Army is best noted for its leading role in the Battle of the Bulge . On 2 April 1945, it was transferred to the Waffen-SS...

, who claimed to have been given the authority by Adolf Hitler

Adolf Hitler

Adolf Hitler was an Austrian-born German politician and the leader of the National Socialist German Workers Party , commonly referred to as the Nazi Party). He was Chancellor of Germany from 1933 to 1945, and head of state from 1934 to 1945...

 in person.