Ribbentrop, Joachim von

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Ribbentrop, Joachim von (1893–1946) German diplomat and politician. Von Ribbentrop joined the Nazi Party in 1932, and became foreign affairs adviser to Hitler in 1933. He initiated the Nazi-Soviet Pact (1939), but steadily lost influence during World War II. At the Nuremberg Trials (1946), he was convicted of war crimes and hanged.