List of wars involving the Holy Roman Empire

This is a list of wars involving the Holy Roman Empire (HRE) (962–1806), since 1512 also known as the Holy Roman Empire of the German Nation (, ).

Holy Roman Empire (962–1806) {| class="wikitable" |- ! width="20%" | Conflict and date ! width="20%" | Combatant 1 ! width="20%" | Combatant 2 ! width="35%" | Result ! width="5%" | Ruling King/Emperor |---- bgcolor="#CCFFCC" |Otto I's raid on Poland (963) | Holy Roman Empire | Duchy of Poland |Victory |Otto I |---- bgcolor="#CCFFCC" |Rebellion of Harald Bluetooth | Holy Roman Empire Norwegian Rebels | Kingdom of Denmark Kingdom of Norway |Victory |Otto II |--- bgcolor="#BBF" |Franco-German War of 978-980 | Holy Roman Empire |West Francia |Status quo ante bellum |Otto II |---- bgcolor="#FFC0C0" |Otto II's raid on Poland | Holy Roman Empire | Civitas Schinesghe |Defeat |Otto II |---- bgcolor="#FFC0C0" |Slavic revolt of 983 | Holy Roman Empire |Wends Lutici Obotrite |Defeat |Otto II |---- bgcolor="#CCFFCC" |Polish-Saxon Invasion of Veleti (985) |rowspan=4| Duchy of Poland Holy Roman Empire |Veleti |Victory |Otto III |---- bgcolor="#CCFFCC" |Polish-Bohemian War (990) | Duchy of Bohemia |Victory |Otto III |---- bgcolor="#CCFFCC" |Polish-German invasion of Veleti (992) |Veleti |Victory |Otto III |---- bgcolor="#CCFFCC" |Polish-German invasion of Obotrites (995) |Obotrites |Victory |Otto III |--- bgcolor="#BBF" |German–Polish War (1003–1018) | Holy Roman Empire | Duchy of Poland |Peace of Bautzen |Henry II |---- bgcolor="#CCFFCC" |Bolesław I's intervention in the Kievan succession crisis (1015–1019) | Duchy of Poland Holy Roman EmpirePechenegs |Kievan Rus' |Victory Temporary victory for Sviatopolk and Boleslaw Polish sack of Kiev |Henry II |---- bgcolor="#CCFFCC" |German–Polish War (1028–1031) | Holy Roman Empire Duchy of Saxony Duchy of Bohemia (from 1029) Kievan Rus' (from 1030) Kingdom of Hungary (1031) | Kingdom of Poland Kingdom of Hungary (1029–1031) |Victory |Conrad II |---- bgcolor="#FFC0C0" |Emperor Conrad II's military campaign against Hungary(1030–1031) | Holy Roman Empire | Kingdom of Hungary |Defeat The Hungarians occupied Vienna |Conrad II |---- bgcolor="#CCFFCC" |German-Hungarian Wars (1042–1043) | Holy Roman Empire |Kingdom of Hungary |Victory |Henry III |---- bgcolor="#CCFFCC" |Henry III's military campaign against Hungary (1044) | Holy Roman Empire Peter Orseolo and his allies | The army of King Samuel Aba |Victory Defeat of Samuel Aba, restoration of Peter |Henry III |---- bgcolor="#FFC0C0" |War between King Peter and Prince Andrew (1046) | King Peter's army Holy Roman Empire | Prince Andrew's army Kievan Rus' |Defeat |Henry III |---- bgcolor="#FFC0C0" |Emperor Henry III's military campaigns against Hungary (1051–1052) | Holy Roman Empire Duchy of Bohemia |Kingdom of Hungary |Defeat |Henry III |--- bgcolor="#BBF" |German-Hungarian border War (1056–1058) | Holy Roman Empire |Kingdom of Hungary |Stalemate treaty of Marchfeld |Henry IV |---- bgcolor="#FFC0C0" |Civil War between King Andrew I and his brother, Prince Bela (1060) | King Andrew I's army Holy Roman Empire | Prince Béla's army Kingdom of Poland |Defeat |Henry IV |---- bgcolor="#CCFFCC" |German invasion of Hungary (1063) | Holy Roman Empire Duchy of Bavaria | Kingdom of Hungary |Victory |Henry IV |---- bgcolor="#CCFFCC" |Saxon revolt of 1077–1088 | Holy Roman Empire |German rebels Duchy of Saxony Duchy of Bavaria County of Luxembourg |Victory |Henry IV |--- bgcolor="#BBF" |German-Flemish war | Holy Roman Empire |County of Flanders |Status quo ante bellum |Henry V |---- bgcolor="#FFC0C0" |Henry V's expedition to Poland | Holy Roman Empire Duchy of Bohemia | Kingdom of Poland |Defeat |Henry V |---- bgcolor="#FFC0C0" |War of Bohemian Succession (1125–1140) | Holy Roman Empire | Duchy of Bohemia |Defeat |Lothair III |--- bgcolor="#BBF" |Wars of the Guelphs and Ghibellines 1125–1186 1216–1392 |Ghibellines'''

|Guelphs

|1st phase:Peace of Constance (1186) 2nd phase:Stalemate (1392)

Decline of free communes;rise of signorie Diffusion of Black Death Extinction of Hohenstaufen dynasty Conquest of the Kingdom of Sicily by Charles of Anjou Interregnum after Frederick II's death Weakening of Imperial Authority over Italy |Frederick I Barbarossa

Frederick II

Henry VII

Louis IV |---- bgcolor="#FFC0C0" |German–Polish War |Holy Roman Empire Duchy of Bohemia |Mieszko III the Old |Mieszko III the Old's victory/Roman defeat |Conrad III of Germany |---- bgcolor="#CCFFCC" |Wendish Crusade (1147)

|Victory March of Brandenburg reconquers Havelberg, County of Holstein expels its Wends |Conrad III of Germany |--- bgcolor="#BBF" |Second Crusade (1147–1150) | Other Crusaders |Emirate of Damascus other Muslim and Pagan entities in East Central Europe, Iberia and the Near East. |Victories in East Central Europe and Iberia. Defeat in the Holy Land. |Conrad III of Germany |---- bgcolor="#CCFFCC" |Frederick I's expedition to Głogów | Holy Roman Empire Duchy of Bohemia | Kingdom of Poland Cumania Old Prussians |Victory|Frederick I Barbarossa |---- bgcolor="#CCFFCC" |Henry VI's conquest of Sicily | Holy Roman Empire | |Victory|Henry VI |---- bgcolor="#CCFFCC" |Third Crusade (1189–1192) | Other Crusaders |Ayyubids |Small Gains for the Crusaders. Jerusalem stays under Ayyubid control. |Frederick I Barbarossa |---- bgcolor="#CCFFCC" |Fourth Crusade (1202–1204) |Crusaders from:

|In Europe: |Victory|Otto IV |---- bgcolor="#CCFFCC" |Prussian Crusade | Other Crusaders |Baltic pagans: Prussians Bartians Galindians Natangians Nadruvians Pomesanians Pogesanians Sambians Warmians Yotvingians (Sudovians) SkalviansAllies of Prussians: Grand Duchy of Lithuania Duchy of Pomerania |Victory Teutonic Knights gain control of Prussia |Frederick II |---- bgcolor="#FFC0C0" |Fifth Crusade (1217–1221) |Crusaders: Kingdom of PortugalLevant: Kingdom of Jerusalem Kingdom of Cyprus Latin EmpireMilitary orders: Knights Templar Teutonic Order Knights Hospitaller |Muslim forces: Ayyubids |Defeat|Frederick II |---- bgcolor="#FFC0C0" |Anglo-French War (1213–1214) | Angevin Empire Kingdom of England County of Anjou Duchy of Normandy Duchy of Aquitaine Holy Roman Empire

County of Flanders County of Boulogne | Kingdom of France |Defeat|Otto IV |---- bgcolor="#CCFFCC" |Sixth Crusade (1227–1229) | including in Personal Union:

|Ayyubids |Kingdom of Jerusalem regains Jerusalem through peaceful negotiations. |Frederick II |---- bgcolor="#FFC0C0" |War of the Lombards | Holy Roman Empire Pro-Imperial faction in the Kingdom of Jerusalem Tyre Jerusalem Principality of Antioch and County of Tripoli Republic of Pisa Knights Hospitaller Teutonic Knights | Kingdom of Cyprus Anti-Imperial faction in the Kingdom of Jerusalem Acre Beirut Arsuf Caesarea Republic of Genoa Knights Templar Papacy |Defeat|Frederick II |--- bgcolor="#BBF" |Great Interregnum1245/50–1273/5 | Hohenstaufen party Frederick II (1245–50) Conrad IV (1245–54) Alfonso X of Castile (1257–75) Rudolf of Habsburg (1273–5) | Welf party Henry of Thuringia (1246–7) William II of Holland (1247–56) Richard of Cornwall (1257–72) Ottokar II of Bohemia |Compromise Unanimous election of Rudolf of Habsburg in 1273 Alfonso X of Castile renounced claim in 1275 |--- bgcolor="#BBF" |Hussite Wars (1419–1434) |Catholic Church, Crusades and Loyalists: Holy Roman Empire |Bohemian Wars: Hussite Movement |Eventual defeat for Radical Hussites, Victory for Moderate Hussites and Catholics |Sigismund |---- bgcolor="#FFC0C0" |Austrian–Hungarian War (1477–1488) | Holy Roman Empire | |Defeat|Frederick III |---- bgcolor="#CCFFCC" |Austrian–Hungarian War (1490–91) | Holy Roman Empire | |Victory Peace of Pressburg (1491) |Frederick III |---- bgcolor="#CCFFCC" |Italian War of 1494–1498 |1494:1495:League of Venice Kingdoms of Spain Duchy of Milan (1496–98) Margraviate of Mantua

| Swiss mercenaries Duchy of Milan (before 1495) Duchy of Ferrara (officially neutral) |Victory|Maximilian I |---- bgcolor="#FFC0C0" |Swabian War (1499) | Swabian League | Three Leagues of the Grisons |Swiss Victory Peace of Basel Swiss Confederacy exempt from the resolutions of the Imperial Diet of Worms

|Maximilian I |---- bgcolor="#CCFFCC" |Italian War of 1521–1526 | Spain (1521–1523 and 1525–1526) | Swiss mercenaries

(1524–1525) Marquisate of Saluzzo |Victory|Charles V |---- bgcolor="#CCFFCC" |War of the League of Cognac (1526–1530) |Pro-Habsburg: |League of Cognac: |Victory|Charles V |---- bgcolor="#FFC0C0" |Little War in Hungary (1526–1568) | Archduchy of Austria Kingdom of Bohemia Duchy of Styria Duchy of Carniola Royal Hungary Kingdom of Croatia Papal States | Ottoman Empire John Szapolyai's Hungarian kingdom |Defeat |Charles V |---- bgcolor="#CCFFCC" |Conquest of Tunis (1535) | Spanish Empire

Kingdom of Sicily

County of Flanders Kingdom of Portugal | Ottoman Empire |Habsburg and allied victory

Sack of Tunis Muley Hassan of the Hafsid dynasty restored as client ruler of Tunis and Spanish-Imperial tributary. |Charles V |--- bgcolor="#FFC0C0" |Italian War of 1536–1538 | Spain | Ottoman Empire |Truce of Nice|Charles V |--- bgcolor="#BBF" |Italian War of 1542–1546 | Brandenburg Spain England | Ottoman Empire Regency of Algiers Jülich-Cleves-Berg Denmark-Norway (1542–1543) |Inconclusive|Charles V |---- bgcolor="#CCFFCC" |Schmalkaldic War 1546–1547 |

Bohemian Crown Habsburg HungarySupported by: |Schmalkaldic League: Hesse Electoral Palatinate Bremen Lübeck Brunswick-Lüneburg Württemberg Pomerania-Wolgast Anhalt-Köthen Brandenburg-Küstrin Lesser German states

Supported by: |Victory Capitulation of Wittenberg Schmalkadic League dissolved Saxon electoral dignity passed to the Albertine House of Wettin |Charles V |---- bgcolor="#FFC0C0" | Second Schmalkaldic War March–August 1552 | Imperial–Habsburg forces Holy Roman Empire Habsburg Austria | Protestant princes | Protestant victory Peace of Passau (1552) Peace of Augsburg (1555) Three Bishoprics annexed by the Kingdom of France | Charles V |--- bgcolor="#BBF" | Long Turkish War (1593–1606)

Transylvania Kingdom of Hungary

| Ottoman Empire

|Inconclusive Peace of Zsitvatorok |Rudolph II |--- bgcolor="#BBF" |War of the Jülich Succession (1609–1614) |1609–1610: Principality of Strasbourg Prince-Bishopric of Liège Catholic League |1609–1610: Margraviate of Brandenburg Palatinate-NeuburgProtestant Union |Treaty of Xanten|Rudolph II Matthias |---- bgcolor="#BBF" |War of the Montferrat Succession |Supporting the Duke of Mantua: Duchy of Mantua Montferrat Tuscany (1613) Spanish Empire (1613–14) |Supporting the Duke of Savoy: Montferrat Tuscany (1613) (1615–17) |Victory Peace of Asti Savoy renounces its claims to Montferrat |Matthias |--- bgcolor="#BBF" |Uskok War | Kingdom of Croatia Spain | Republic of Venice |Treaty of Madrid (1617) Many Uskok pirates executed or exiled; Austrian garrison installed to check Uskoks. |Matthias |---- bgcolor="#FFC0C0" | Thirty Years' War 1618–1648 | Imperial alliance prior to 1635Post–1635 Peace of Prague|Anti-Imperial alliance prior to 1635Post–1635 Peace of Prague| Peace of Prague (1635) Peace of Westphalia (1648): Peace of Münster (January 1648) between Spain and the Dutch Republic Treaty of Osnabrück (IPO; October 1648) between Sweden and the Holy Roman Empire Treaty of Münster (October 1648) (IPM; October 1648) between France and the Holy Roman Empire Consequences France annexes Décapole, and Sundgau Sweden gains Wismar, Wolin, Western Pomerania, and Bremen-Verden Brandenburg-Prussia obtains Eastern Pomerania Spain recognises sovereignty of the Dutch Republic Old Swiss Confederacy gains independence from the Holy Roman Empire | Ferdinand III |---- bgcolor="#CCFFCC" |Upper Austrian peasant war of 1626 | Holy Roman Empire Bavaria |Austrian Rebels |Victory|Adam Von Herberstorff |--- bgcolor="#BBF" |Austro-Turkish War (1663–1664) | League of the Rhine: