bn:00580063n
Noun Named Entity
Categories: 1421 births, 1454 deaths, House of Piast, Burials at St. John's Archcathedral, Warsaw
EN
Bolesław IV of Warsaw  Boleslaus IV of Masovia  Boleslaus IV of Warsaw  Boleslaus IV Warszawski  Boleslaw IV of Warsaw
EN
Bolesław IV of Warsaw Wikipedia
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