Complex sentence: Hede Massing or Hedda Massing, nee Hedwiga Gompertz or Hede Gompertz, was an Austrian-born Soviet intelligence operative who served in the United States in the 1930s and wrote for the German magazine "Der Spiegel".
Split into simpler sentences: Hede Massing or Hedda Massing, nee Hedwiga Gompertz or Hede Gompertz, an Austrian-born Soviet intelligence operative who served in the United States in the 1930s. She wrote for the German magazine "Der Spiegel".