Number Name Rank Unit Date of award Notes 5 Otto Kretschmer Korvettenkapitän commander of U-99 26 December 1941 17 Erich Topp Kapitänleutnant commander of U-552 17 August 1942 18 Reinhard Suhren Kapitänleutnant commander of U-564 1 September 1942 29 Wolfgang Lüth Kapitänleutnant commander of U-181 25 April 1943 Awarded 7th Diamonds on 9 August 1943 66 Albrecht Brandi Kapitänleutnant commander of U-380 9 May 1944 Awarded 22nd Diamonds on 24 November 1944