Siegfried Wuppermann (15 December 1916 - 15 April 2005) received the Ritterkreuz des Eisernen Kreuzes on 3 August 1941 as Oberleutnant zur See and Kommandant Schnellboot "S 60" / 3.Schnellbootsflottille. The medal was awarded for the successes achieved by him and his boat on all fronts. In the Norwegian campaign he sunk a freighter with 3000 GRT. On the night of 27-28 May 1940 he sunk the French destroyer "Sirocco" and a tanker with 1000 GRT. As the deputy commander of the 3. Schnellbootsflottille, he achieved a notable success on 7 March 1941 near Great Yarmouth / Lowestoft. In three attack runs he sank two destroyers, two freighters with 5700 GRT and a tanker with 8000 GRT. Later on, in actions against the Soviets, he destroyed two armed Soviet freighters with 3577 GRT on 22 June 1941, and two days later the Soviet submarine S 3. On 27 June 1941 his and three other boats engaged with 7 Soviet destroyers and 1 torpedo boat. In a half hour fight he and his ships sunk 2 of these destroyers and also the torpedo boat.
Wuppermann received the Eichenlaub #226 for his Ritterkreuz on 14 April 1943 as Oberleutnant zur See and Kommandant Schnellboot "S 56" / 3.Schnellbootsflottille. It was achieved due to further successes as the commander of S-56. He sank a Soviet patrol vessel on 18 August 1941. Sank a British patrol vessel in the Mediterranean on 7 May 1942. Sank another British patrol vessel and a submarine chaser on 10 May 1942. Torpedoed and severely damaged the British cruiser "Newcastle" on 14 June 1942. Destroyed a number of British ships as they attempted to flee the port of Tobruk when it fell on 21 June 1942 (3 small ships with 350 GRT, 4 barges, 1 freighter with 5000 GRT that had already been damaged by the Luftwaffe, 1 steamship with 6810 GRT, 1 large and 2 smaller landing craft).
Source :
Bundesarchiv Bild 101II-MW-2061-35
https://www.tracesofwar.com/persons/34509/Wuppermann-Otto-Joseph-Siegfried.htm
