List of state leaders in 1337
Africa
- Ethiopian Empire – Amda Seyon I
- Gurma - Banydoba, Ruler of Gurma
- Mali Empire –
- #Musa I of Mali, Mansa of Mali
- #Maghan, Mansa of Mali
Americas
- Aztec Empire – Tenoch, Great Speaker
Asia
- Amber - Joshi, Raja of Amber
- Chandellas – Viravarman II Deva, Ruler of the Chandellas
- China - Emperor Huizong
- Kingdom of Chūzan - Seii
- Delhi Sultanate – - Muhammad bin Tughluq
- Gondwana – Sabala Simha, Ruler of Gondwana
- Kingdom of Hokuzan – Haniji
- Japan
- *Monarch - Emperor Kōmyō
- *Monarch - Emperor Go-Daigo
- *de facto - Ashikaga Takauji
- Jalairid Sultanate – Hasan Buzurg
- Korea – Chungsuk
- Kingdom of Nanzan – Ofusato
- Sukhothai Kingdom – Ngua Nam Thum
- Vijayanagara Empire – Harihara I
Europe
- Kingdom of Aragon – Peter IV
- Bosnia – Stephen II, Ban of Bosnia
- Bulgarian Empire – Ivan Alexander, Tsar of Bulgaria
- Byzantine Empire – Andronikos III Palaiologos
- Crown of Castile – Alfonso XI
- Kingdom of Denmark – Interregnum
- Durazzo - Charles, Duke of Durazzo
- Kingdom of England – Edward III
- Kingdom of France – Philip VI
- Kingdom of Hungary – - Charles I
- Latin Empire of Constantinople – Catherine II
- Grand Duchy of Lithuania – Gediminas
- Grand Duchy of Moscow – Ivan Kalita, Prince of Moscow
- Kingdom of Norway – Magnus VII
- Kingdom of Portugal and the Algarves – Afonso IV
- Kingdom of Serbia – Stefan Uroš IV Duša
- Kingdom of Sweden – Magnus II
- Republic of Venice – Francesco Dandolo, Doge of Venice
- Wallachia – Basarab I
- Holy Roman Empire - Louis IV
Electors
- Electorate of Mainz – Heinrich III von Virneberg
- Kingdom of Bohemia - John I
- Electorate of Cologne – Walram of Jülich
- Electorate of Saxony – Rudolf I, Duke of Saxe-Wittenberg
- Archbishopric of Trier – Baldwin of Luxembourg
Bohemia
- Kingdom of Bohemia – John the Blind
- Silesia – Part of Bohemia
- *Duchy of Beuthen – Wladislaw
- *Bishopric of Breslau – Nanker
- *Duchy of Brzeg – Boleslaw III
- *Duchy of Falkenberg – Boleslaw I
- *Duchy of Jawor – Henry I of Jawor
- *Duchy of Glatz – Bolko
- *Duchy of Głogów – Henry I of Jawor
- *Glogau-Steinau – John, Duke of Ścinawa
- *Duchy of Legnica – Bolesław III the Generous
- *Duchy of Münsterberg – Bolko II of Ziębice
- *Duchy of Oels – Konrad I of Oleśnica
- *Duchy of Opole – Bolko II
- *Duchy of Racibórz – Nicolas II
- *Duchy of Żagań – Henry IV the Faithful
- *Duchy of Świdnica –
- **Henry II
- **Bolko II
- *Duchy of Strelitz – Albrecht
- *Duchy of Teschen – Casimir I, Duke of Cieszyn
- Lower Alsace – Ulrich, Landgrave of Lower-Alsace
- County of Anhalt-Bernburg – Bernhard III
- Principality of Anhalt-Zerbst –
- *Albert II co-ruler
- *Waldemar I co-ruler
- Patria del Friuli – Bertrando di San Genesio
- Prince-Bishopric of Augsburg –
- #Ulrich II von Schönegg, Prince-Bishop of Augsburg
- #Henry III von Schönegg
- Duchy of Austria - Albert II
- Margraviate of Baden-Eberstein – Herman IX
- Margraviate of Baden-Hachberg – Henry IV
- Margraviate of Baden-Pforzheim – Rudolf IV
- Margraviate of Baden-Sausenberg – Rudolf II
- Prince-Bishopric of Bamberg – Leopold II von Egloffstein
- County of Bar –
- #Edward I
- #Henry IV
- Duchy of Brabant – John III
- Prince-Bishopric of Basel – Johann II von Munsingen
- Duchy of Lower Bavaria - Henry XIV, Duke of Bavaria
- Bentheim-Bentheim – Simon, Lord of Bentheim
- County of Berg – Adolf IX of Berg
- Blamont - Henry III, Count of Blamont
- County of Blankenburg – Poppo II
- Bishopric of Brandenburg – Louis von Neindorf
- Archbishopric of Bremen-Hamburg – Burchard II
- County of New Bruchhausen – Henry VI
- County of Old Bruchhausen – Otto
- Duchy of Brunswick-Göttingen –
- *Otto the Mild
- *Ernst
- Duchy of Brunswick-Grubenhagen – Henry II, Duke of Brunswick-Lüneburg
- Duchy of Brunswick-Herzberg – William
- Duchy of Brunswick-Lüneburg –
- *Otto II
- *William
- Principality of Brunswick-Wolfenbüttel –
- *Otto the Mild, Duke of Brunswick-Lüneburg
- *Ernest I, Duke of Brunswick-Göttingen
- *Magnus I, Duke of Brunswick-Lüneburg
- Cagliari – Bonfacio II, Ruler of Cagliari
- Carpi – Manfredo Pio, Lord of Carpi
- County of Castell – Frederic IV the Old
- County of Cleves – Dietrich VIII The Pious
- Dauphiné – Humbert II of Viennois
- County of Delmenhorst –
- Christian the Elder
- County of Dohna –
- *Otto XIV
- *Frederic
- Bishopric of Eichstätt – Heinrich V Schenk von Reicheneck
- Florence – No Lord, Gonfaloniere of Justice
- County of Freiburg – Conrad II
- Bishopric of Freising – Konrad IV von Klingenberg
- Imperial Abbey of Fulda – Heinrich VI von Hohenberg
- Fürstenberg –
- * Henry III, Count of Fürstenberg
- * John, Count of Fürstenberg
- Fürstenberg-Wartenberg - Conrad, Count of Fürstenberg-Wartenberg
- Bishopric of Geneva – Peter de Faucigny, Bishop of Geneva
- County of Geneva – Amédée III
- Republic of Genoa – Rafaela Doria, Consul of Genoa
- County of Gleichen –
- * Henry V
- * Hermann
- Duchy of Guelders – Reinoud II the Black
- Jever – Sibeth, Chief of Jever
- County of Hainaut - William II
- Bishopric of Halberstadt – Albert II of Brunswick-Lüneburg
- County of Hanau – Ulrich II
- Bishopric of Havelberg – Dietrich I Kothe von Stendal
- County of Henneberg-Aschach-Römhild – Herman III
- County of Henneberg-Hartenberg – Poppo X
- County of Henneberg-Schleusingen – Berthold IV, Prince of Henneberg-Schleusingen
- Landgraviate of Hesse – Henry II, The Iron
- Bishopric of Hildesheim – Henry III of Brunswick, Bishop of Hildesheim
- County of Hohenzollern - Frederic IX, Count of Hohenzollern
- County of Hohnstein – Henry V
- County of Hohnstein-Heringen – Dietrich V
- County of Hohnstein-Klettenberg – Henry VI
- County of Holland - William III
- County of Holstein-Plön – John III
- County of Holstein-Rendsburg – Gerhard III The Great
- County of Hoya – Gerhard III
- Nieder-Isenburg – Salentin III, Count of Lower Isenburg
- Isenburg-Arnfels – Gerlach II of Isenburg-Arnfels
- Isenburg-Büdingen – Henry II, Lord of Isenburg-Büdingen
- Isenburg-Braunsberg – William I of Isenburg-Braunsberg
- Isenburg-Grenzau – Philip I, Lord of Isenburg-Grenzau
- Isenburg-Kempenich – Simon I of Isenburg-Kempenich
- Isenburg-Limburg – Gerlach V of Isenburg-Limburg
- Duchy of Jülich – William V, Prince of the Empire
- Bishopric of Cammin – Friedrich von Eickstedt
- County of New Katzenellnbogen –
- *Eberhard IV
- *John II
- County of Old Katzenellnbogen – William II
- County of Kiburg-Burgdorf – Eberhard II
- Bishopric of Konstanz – Nicolas von Frauenfeld
- Bishopric of Lebus – Stephen II
- Leiningen – Frederic VI, Landgrave of Leiningen
- County of Leiningen-Hartenburg – Gottfried
- Lichtenau - Louis V, Lord of Lichtenau
- Lichtenberg – Simon, Lord of Lichtenberg
- Leuchtenberg – Ulrich II, Landgrave of Leuchtenberg
- Prince-Bishopric of Liège – Adolf II von der Mark
- County of Loon – Diederik
- Duchy of Lorraine – Rudolph
- County of Löwenstein – Nicolas
- Bishopric of Lübeck – Henry II von Bockholt, Bishop of Lübeck
- Archbishopric of Magdeburg – Otto, Landgrave of Hesse, Archbishop of Magdeburg
- Mansfeld Land – Burchard V, Count of Mansfeld
- Mantua - Louis I, Lord of Mantua
- County of Mark – Adolf II
- Principality of Mecklenburg-Güstrow – Nicolas III
- Duchy of Mecklenburg-Wismar – Albrecht I
- Bishopric of Meissen – Widicho II von Colditz
- Burgraviate of Meissen –
- *Meinher V
- *Meinher V
- *Hermann VI
- Margraviate of Meissen House of Wettin - Frederick II, the Serious
- Bishopric of Merseburg – Gebhard von Schrapelau
- Milan - Azzo Visconti, Lord of Milan
- Bishopric of Minden – Louis of Brunswick
- March of Montferrat –
- #Theodore I
- Margraviate of Moravia - Charles
- County of Mörs – Dietrich IV
- Prince-Bishopric of Münster – Louis II, Landgrave of Hesse
- County of Namur –
- #Philip III, Marquis of Namur
- #William I, Marquis of Namur
- County of Nassau –
- *Henry I, Count of Nassau-Siegen
- *Gerlach I, Count of Nassau
- County of Nassau-Hadamar –
- *Emicho II
- *John
- Nassau-Siegen - Henry I, Count of Nassau-Siegen
- Bishopric of Naumburg – Widicho I von Osterau
- County of Neuchâtel – Rudolph V
- County of Neuenahr – William III
- County of Nidda – John I
- Burgraviate of Nuremberg - John II
- County of Oettingen –
- * Louis IX
- * Louis X
- * Frederick IV
- County of Oldenburg – Conrad I
- County of Orlamünde – Henry IV The Old
- County of Orlamünde-Rudolstadt – Otto VI
- Prince-Bishopric of Osnabrück – Gottfried von Arnsberg, Bishop of Osnabrück
- Bishopric of Paderborn – Bernard V, Count of Lippe, Bishop of Paderborn
- Padua -
- # Marsilio da Carrara, Lord of Padua
- County Palatine of the Rhine
- Bishopric of Passau – Albert I of Saxony, Bishop of Passau
- Principality of Pavia – Musso Beccaria
- Pisa – Bonifacio Gherardesca del Massado, Podestà of Pisa
- County of Plauen –
- *Henry I The Long The Smart, Count of Plauen
- Pomerania-Stettin – Otto I, Duke of Pomerania
- Pomerania-Wolgast –
- *Otto I, Duke of Pomerania
- *Barnim IV, Duke of Pomerania
- Bishopric of Ratzeburg – Volrad von dem Dorne
- County of Ravensberg – Bernard
- Bishopric of Regensburg – Nicolas van Stachowitz
- County of Regenstein – Henry XV
- County of Regenstein-Heimburg –
- *Albert II )
- *Bernhard I
- County of Rietberg – Otto I
- County of Saarbrücken – John I
- County of Saarwerden – Frederick II
- Upper Salm – Simon I, Count of Upper Salm
- Marquisate of Saluzzo – Manfredo IV
- Archbishopric of Salzburg – Frederick III of Liebnitz, Prince-Archbishop of Salzburg, 1315–1338
- County of Savoy – Aimone the Peaceful
- Duchy of Saxe-Bergedorf –
- *Albrecht IV
- Duchy of Saxe-Lauenburg – Eric I
- County of Sayn – John II
- County of Sayn-Homburg-Vallendar –
- *Gottfried
- *Engelbert II
- County of Schaumburg – Adolf VII
- County of Schwarzburg – Henry IX
- County of Schwarzburg-Blankenburg –
- *Günther XXI
- *Henry XII
- *Günther XXV
- County of Schwarzburg-Käfernburg – Günther XII
- Bishopric of Schwerin – Ludolf von Bülow
- County of Schwerin – Henry IV
- County of Solms – Bernhard I
- Bishopric of Speyer – Gerhard of Ehrenberg
- County of Stolberg –
- *Henry XI
- *Henry XII
- Prince-Bishopric of Strasbourg – Berthold II von Bucheck, Bishop of Strasbourg
- Swiss Confederation – Member states were: Luzern, Schwyz, Unterwalden and Uri
- Duchy of Teck –
- * Louis IV
- * Frederic II
- * Simon II
- County of Toggenburg –
- *Kraft III
- *Kraft IV
- *Diethelm VI
- *Donat
- County of Tyrol – John Henry
- Bishopric of Utrecht – Jan III van Diest
- Prince-Bishopric of Verden – Johannes Hake
- Verona House of Scaligeri -
- *Albert II, Lord of Verona
- *Mastino II, Lord of Verona
- County of Waldeck – Henry IV
- County of Werdenberg-Sargans – Hartmann III
- County of Weida – Henry IV
- County of Weimar – Frederic I The Old
- County of Wernigerode – Conrad III
- County of Wertheim – Rudolph IV
- County of Württemberg – Ulrich III
- Bishopric of Würzburg – Otto II von Wolfskeel
- County of Ziegenhain – Gottfried VII
- County of Zweibrücken – Walram II
Middle East and North Africa
- Aydinids – Muhammad Bey, Seljuq emir of Aydin
- Armenian Kingdom of Cilicia - Leo V
- Kingdom of Cyprus – Hugh IV
- Mamluk Sultanate of Egypt – Al-Nasir Muhammad
- Ottoman Empire – Orhan I, Ottoman Bey
