+———Wilhem LENGER
          |
      +———Robert LENGER (19 Aug 1868 Lodz, Poland – Feb 1911)
      |   |    
      |   +———Susanny SCHMIDT
      |
  +———Richard LAENGER ( – bet 1960 and 1965 France)
  |   |        
  |   |   +———Karl SCHIEDEK
  |   |   |
  |   +———Marianna or Maria “Marie” SZYDEK (1872/3 – 15 May 1916 Chojiny, Germany)
  |       |    
  |       +———Anastasia REJTICH
  |    
  Monica LAENGER