Antoni Witkowski

Same nationality and era where possible; falls back to shared nationality or era.

• 
  Álvaro Cunhal

  1913–2005Portugal

  Álvaro Barreirinhas Cunhal (Portuguese pronunciation: [ˈalvɐɾu kuˈɲal]; 10 November 1913 – 13 June 2005) was a Portuguese leftist revolutionary and politician.

• Viktor Lederer

  1905Czechoslovakia
• 
  Robert Ploton

  1901–1975France
• Alexander Bouman

  1892–1943Kingdom of the Netherlands
• Witold Alkiewicz

  1904–1945Poland
• Heinrich Kipphardt

  1897–1977