Georg Ludwig Ritter von Trapp [a] [3] [4] (4 April 1880 – 30 May 1947) was an officer in the Austro-Hungarian Navy who became the patriarch of the Trapp Family Singers. Trapp was the most successful Austro-Hungarian submarine commander of World War I , [ b ] sinking 11 Allied merchant ships totaling 47,653 GRT and two Allied warships ... More @Wikipedia
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