Conflict and date
Combatant 1
Combatant 2
Result
Ruling King/Emperor
Otto I's raid on Poland (963)
Holy Roman Empire
Duchy of Poland
Victory
Otto I
German–Danish War of 974
Holy Roman Empire
Kingdom of Denmark Norwegian vasal
Victory
Otto II
Franco-German War of 978-980
Holy Roman Empire
West Francia
Status quo ante bellum
Otto II
Otto II's raid on Poland
Holy Roman Empire
Civitas Schinesghe
Defeat
Otto II
Slavic revolt of 983
Holy Roman Empire
Wends
Lutici
Obotrite
Defeat
Otto II
Polish-Saxon Invasion of Veleti (985)
Duchy of Poland Holy Roman Empire
Veleti
Victory
Otto III
Polish-Bohemian War (990)
Duchy of Bohemia
Victory
Otto III
Polish-German invasion of Veleti (992)
Veleti
Victory
Otto III
Polish-German invasion of Obotrites (995)
Obotrites
Victory
Otto III
German–Polish War (1003–1018)
Holy Roman Empire
Duchy of Poland
Peace of Bautzen
Henry II
Bolesław I's intervention in the Kievan succession crisis (1015–1019)
Duchy of Poland
Holy Roman Empire Pechenegs
Kievan Rus'
Victory
Temporary victory for Sviatopolk and Boleslaw
Polish sack of Kiev
Henry II
German–Polish War (1028–1031)
Holy Roman Empire
Kievan Rus' (from 1030) Kingdom of Hungary (1031)
Kingdom of Poland Kingdom of Hungary (1029–1031)
Victory
Conrad II
Emperor Conrad II's military campaign against Hungary (1030–1031)
Holy Roman Empire
Kingdom of Hungary
Defeat
The Hungarians occupied Vienna
Conrad II
German-Hungarian Wars (1042–1043)
Holy Roman Empire
Kingdom of Hungary
Victory
Henry III
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
War between King Peter and Prince Andrew
(1046)
King Peter's army
Holy Roman Empire
Prince Andrew's army
Kievan Rus'
Defeat
Henry III
Emperor Henry III's military campaigns against Hungary (1051–1052)
Holy Roman Empire
Duchy of Bohemia
Kingdom of Hungary
Defeat
Henry III
German-Hungarian border War (1056–1058)
Holy Roman Empire
Kingdom of Hungary
Stalemate
Henry IV
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
German invasion of Hungary (1063)
Holy Roman Empire
Kingdom of Hungary
Victory
Henry IV
Saxon revolt of 1077–1088
Holy Roman Empire
German rebels
Victory
Henry IV
German-Flemish war
Holy Roman Empire
County of Flanders
Status quo ante bellum
Henry V
Henry V's expedition to Poland
Holy Roman Empire Duchy of Bohemia
Kingdom of Poland
Defeat
Henry V
War of Bohemian Succession (1125–1140)
Holy Roman Empire
Duchy of Bohemia
Defeat
Lothair III
Wars of the Guelphs and Ghibellines
Ghibellines'
Guelphs'
1st phase:Peace of Constance (1186)
2nd phase:Stalemate (1392)
Frederick I
Barbarossa
Frederick II
Henry VII
Louis IV
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
Wendish Crusade (1147)
Victory
March of Brandenburg reconquers Havelberg , County of Holstein expels its Wends
Conrad III of Germany
Second Crusade
(1147–1150)
Holy Roman Empire
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
Frederick I's expedition to Głogów
Holy Roman Empire Duchy of Bohemia
Kingdom of Poland Cumania Old Prussians
Victory
Frederick I Barbarossa
Henry VI's conquest of Sicily
Holy Roman Empire
Kingdom of Sicily
Victory
Henry VI
Third Crusade
(1189–1192)
Holy Roman Empire
Other Crusaders
Ayyubids
Small Gains for the Crusaders. Jerusalem stays under Ayyubid control.
Frederick I Barbarossa
Fourth Crusade
(1202–1204)
Crusaders from:
Republic of Venice
In Europe:
Victory
Otto IV
Prussian Crusade
Holy Roman Empire
Other Crusaders
Baltic pagans :'
Allies of Prussians:
Victory
Teutonic Knights gain control of Prussia
Frederick II
Fifth Crusade
(1217–1221)
Crusaders:
Levant:
Military orders:
Muslim forces:
Defeat
Frederick II
Anglo-French War (1213–1214)
Angevin Empire
Holy Roman Empire
County of Flanders
County of Boulogne
Kingdom of France
Defeat
Otto IV
Sixth Crusade
(1227–1229)
Holy Roman Empire
including in Personal Union:
Ayyubids
Kingdom of Jerusalem regains Jerusalem through peaceful negotiations.
Frederick II
War of the Lombards
Holy Roman Empire Pro-Imperial faction in the Kingdom of 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
Republic of Genoa Knights Templar Papacy
Defeat
Frederick II
Great Interregnum [ 1]
1245/50–1273/5
Hohenstaufen party
Welf party
Compromise
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
Austrian–Hungarian War (1477–1488)
Holy Roman Empire
Kingdom of Hungary
Defeat
Frederick III
Austrian–Hungarian War (1490–91)
Holy Roman Empire
Kingdom of Hungary
Victory
Frederick III
Italian War of 1494–1498
1494: Kingdom of Naples 1495:League of Venice Papal States Republic of Venice Kingdom of Naples Kingdoms of Spain Duchy of Milan Holy Roman Empire Republic of Florence
England (1496–98) Margraviate of Mantua
Republic of Genoa
Kingdom of France
Duchy of Milan (before 1495)
Duchy of Ferrara (officially neutral)
Victory
Maximilian I
Swabian War
(1499)
Holy Roman Empire
Swabian League
Old Swiss Confederacy
Three Leagues of the Grisons
Swiss Victory
Peace of Basel
Maximilian I
Italian War of 1521–1526
Holy Roman Empire Spain England Papal States (1521–1523 and 1525–1526)
France
Republic of Venice
Papal States (1524–1525)
Marquisate of Saluzzo
Victory
Charles V
War of the League of Cognac
(1526–1530)
Pro-Habsburg :
League of Cognac :
Victory
Charles V
Little War in Hungary (1526–1568)
Holy Roman Empire
Royal Hungary Kingdom of Croatia Spain Papal States
Ottoman Empire John Szapolyai's Hungarian kingdom
Defeat
Charles V
Conquest of Tunis (1535)
Spanish Empire
Holy Roman Empire
Kingdom of Portugal Papal States Knights of Malta
Ottoman Empire Kingdom of France
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
Italian War of 1536–1538
Holy Roman Empire Spain
Kingdom of France Ottoman Empire
Truce of Nice
Charles V
Italian War of 1542–1546
Holy Roman Empire Saxony Brandenburg Spain England
France Ottoman Empire
Jülich-Cleves-Berg Denmark-Norway (1542–1543)
Inconclusive
Charles V
Schmalkaldic War
1546–1547
Holy Roman Empire
Habsburg Spain Habsburg Hungary Supported by: Papal States
Schmalkaldic League :
Supported by: England
Victory
Charles V
Second Schmalkaldic War
March–August 1552
Imperial–Habsburg forces
Holy Roman Empire
Protestant princes
Protestant victory
Charles V
Long Turkish War
(1593–1606)
Ottoman Empire
Inconclusive
Rudolph II
War of the Jülich Succession
(1609–1614)
1609–1610: Holy Roman Empire Principality of Strasbourg Prince-Bishopric of Liège Catholic League
1609–1610: Margraviate of Brandenburg Palatinate-Neuburg United Provinces Kingdom of France Protestant Union
Treaty of Xanten
Rudolph II
Matthias
War of the Montferrat Succession
Supporting the Duke of Mantua : Duchy of Mantua Montferrat Tuscany (1613) Spanish Empire France (1613–14) Holy Roman Empire Kingdom of Naples Genoa
Supporting the Duke of Savoy : Duchy of Savoy Montferrat Tuscany (1613) France (1615–17) Venice
Victory
Matthias
Uskok War
Holy Roman Empire Kingdom of Croatia Spain
Republic of Venice Dutch Republic England
Treaty of Madrid (1617)
Many Uskok pirates executed or exiled; Austrian garrison installed to check Uskoks.
Matthias
Thirty Years' War
1618–1648
Imperial alliance prior to 1635 [ a]
Post–1635 Peace of Prague
Anti-Imperial alliance prior to 1635 [ b]
Post–1635 Peace of Prague
Consequences
Ferdinand III
Upper Austrian peasant war of 1626
Holy Roman Empire Bavaria
Austrian Rebels
Victory
Adam Von Herberstorff
Austro-Turkish War
(1663–1664)
League of the Rhine :
Kingdom of France
Holy Roman Empire
Piedmont-Savoy
Kingdom of Hungary
Kingdom of Croatia
Polish–Lithuanian Commonwealth
Ottoman Empire
Peace of Vasvár
Leopold I
Franco-Dutch War
(1672–1678)
Treaty of Nijmegen
Leopold I
War of the Reunions
Spain Co-belligerent : Holy Roman Empire Genoa
France
Defeat
Leopold I
Great Turkish War
(1683–1699)
Holy Roman Empire
Polish–Lithuanian Commonwealth
Tsardom of Russia
Republic of Venice
Spanish Empire
Ottoman Empire
Victory
Treaty of Karlowitz
The Habsburg monarchy wins lands in Hungary, the Principality of Transylvania and the Balkans.
Poland-Lithuania captures Podolia .
Russia captures the port of Azov .
Venice captures Morea and inner Dalmatia .
Leopold I
Nine Years War
(1688–1697)
Holy Roman Empire
Dutch Republic
England
Scotland
Spanish Empire
Duchy of Savoy
Portuguese Empire
Swedish Empire
(until 1691)
France
Treaty of Ryswick
Leopold I
War of the Spanish Succession
(1701–1714)
Holy Roman Empire
Austrian Monarchy
Dutch Republic
Prussia
England (until 1707)
Great Britain (from 1707)
Piedmont-Savoy
Habsburg Spain
Portugal
France
Spanish monarchy
Bavaria (until 1704)
Cologne (until 1702)
Mantua (until 1708)
Treaties of Utrecht (1713), Rastatt (1714) and Baden (1714)
Philip is recognized as King of Spain , but once more renounces any claim to the throne of France
Austria gains the crowns of Naples and Sardinia as well as the duchy of Milan and the Spanish Netherlands
Savoy gains the crown of Sicily which is soon to be exchanged with Sardinia
Leopold I
Joseph I
Charles VI
Rákóczi's War of Independence
Swiss
Germans
Italians
Spaniards
Foreign mercenaries and volunteers:
Victory
Leopold I
Joseph I
Charles VI
War of the Polish Succession
(1733–1735)
Holy Roman Empire
Russia
Poland Loyal to Augustus III
France
Spain
Savoy -Sardinia
Duchy of Parma
Sweden
Poland Loyal to Stanislaus I
Treaty of Vienna
Charles VI
Liège Revolution
(1789–1791)
Holy Roman Empire
Prince-Bishops of Liège
Liège Rebels
Brabant Rebels
Republic of Liège
Supported by:Prussia
Foundation of Liège Republic (1789);
reversion to Prince-Bishopric (1791);
annexation by France (1795)
Leopold II
War of the First Coalition (mostly the Low Countries theatre )
1792–1797
First Coalition: Dutch Republic Holy Roman Empire
Great Britain
Spanish Empire (1793–95)
Kingdom of the French (1792) French First Republic (from 1792)
Spanish Empire (1796–97)
French Republican victory
Francis II
War of the Second Coalition
1798–1802
Spanish Empire
French victory
Francis II
War of the Third Coalition
1803–1806(part of the Napoleonic Wars )
French victory
Francis II