"Otto Langmann (1898-1956) was a German pastor and diplomat.
In November 1923 he married Ilse Siefert, with whom he had four children. He was appointed parish priest ...
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in Mecklenburg. In 1928 he went to Colombia and Ecuador. In 1930, in Guatemala, he supported a local evangelical community; a year later he joined the NSDAP and founded the first Nazi group abroad.
He served as the representative of German government in Montevideo, Uruguay (1937-1942) during the Battle of the River Plate in 1939. He held that position until the Uruguayan government broke off relations with Germany." - (en.wikipedia.org 31.12.2019)