Complex sentence: 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.
Split into simpler sentences: In the mid 1920s, Walther Sommerlath moved to São Paulo, Brazil. In São Paulo, Sommerlath worked at the steel company Acus Roechling Boulerus do Brasil, a subsidiary in the German steel group Roechling.