"1912Z"^^ . "Ralf-Reimar Wolfram"@en . "German submarine commander killed in action duringOperation Caesar."@en . . "," . . "1945-02-09Z"^^ . "1945Z"^^ . "1912-03-31Z"^^ . "Scottish television presenter" . "Wolfram, Ralf-Reimar"@en . . . "Ralf-Reimar Wolfram was a Korvettenkapit\u00E4n during World War II. During his career he commanded two U-boats for a total of 118 days at sea spanning four patrols. During his third patrol he successfully sank the SS Robert Gray, an American liberty ship. Robert Gray was a straggler from convoy HX 234 en route to Britain.For Wolfram's fourth patrol, he commanded U-864 during Operation Caesar. He was killed when his submarine was sunk by the British submarine, Venturer."@en .