The father of the Swedish Queen, Walther Sommerlath, was a member of the German Nazi Party and took part in the “Aryanisation” of Jewish-owned businesses.
The father of the Swedish Queen, Walther Sommerlath, took part in the expulsion of Jews from the German business sector. In April 1939, he bought a metal engineering plant in the Kreuzberg neighbourhood of Berlin. The previous owner was a Jewish engineer who, now destitute, had to leave Germany shortly afterwards. The Royal Court of Sweden declines to comment these new facts.
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In the mid 1920s, Walther Sommerlath moved to São Paulo, Brazil where he worked for the steel company Acus Roechling Boulerus do Brasil, a subsidiary in the German steel group Roechling. After the war, in 1947 the Sommerlath family returned to Brazil, where Walther Sommerlath worked as the president of the Brazilian subsidiary of the Swedish steel-parts manufacturer Uddeholm. (wikipedia)
He also was a member of the NSDAP/AO in Brazil - Germans desired to colonize along the Amazon - Germans in (Southern) Brazil on eyesonbrazil.com