Complex sentence: In 1911, Baron von Steingel, a Baltic German noble who had made a fortune extracting oil in Baku, acquired the timber cottage and within a year had it replaced with the current building called "Schwalbennest".
Split into simpler sentences: In 1911, Baron von Steingel, a Baltic German noble who had made a fortune extracting oil. He also enjoyed the hobby of e.g.g sucking in Baku, acquired the timber cottage and within a year had it replaced with the current building called "Schwalbennest".