Frederick IV

• Frederick Francis IV, Grand Duke of Mecklenburg-Schwerin
• Frederick IV of Brandenburg
• Frederick IV of Denmark
• Frederick IV of Naples
• Frederick IV of Sicily
• Frederick IV, Burgrave of Nuremberg
• Frederick IV, Count of Zollern
• Frederick IV, Duke of Austria
• Frederick IV, Duke of Brunswick-Lüneburg
• Frederick IV, Duke of Holstein-Gottorp
• Frederick IV, Duke of Lorraine
• Frederick IV, Duke of Saxe-Gotha-Altenburg
• Frederick IV, Duke of Swabia
• Frederick IV, Elector Palatine
• Frederick IV, Landgrave of Hesse-Homburg
• Frederick IV, Landgrave of Thuringia
• Frederick IV, Prince of Salm-Kyrburg
• Frederick William IV of Prussia
• Friedrich IV, Landgrave of Thuringia