EntityQ404740· pop 20Frederick IVSign in to saveWikimedia disambiguation pageConnectionsFrederick IVEntityFrederick William IV of PrussiaEntityFrederik IV of DenmarkEntityFrederick IV, Duke of Schleswig-Holstein-GottorpEntityFrederick IV of NaplesEntityFrederick IV, Duke of AustriaEntityFrederick Francis IVEntityFrederick IV, Elector PalatineEntityFrederick III the SimpleEntityFrederick IV, Duke of SwabiaEntityFrederick IV, Duke of LorraineEntityFrederick IV, Duke of Saxe-Gotha-AltenburgEntityFrederick IV, Duke of Brunswick-LüneburgEntityFrederick IV, Landgrave of Hesse-HomburgEntityFrederick IVEntityFrederick IV, Count of ZollernEntityFrederick IV, Prince of Salm-KyrburgEntityFrederick of BrandenbergEntityFrederick IV of OettingenEntityCategoriesHuman name disambiguation pages