War of the Lombards

War of the Lombards
Map of the Crusader states, 1240
Date 1228 – 1243 Location Kingdom of Cyprus, Kingdom of Jerusalem Result Victory of anti-Imperial faction of local barons
Belligerents
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
Commanders and leaders
Emperor Frederick II Riccardo Filangieri	Queen Alice of Cyprus John of Ibelin Philip of Montfort

The War of the Lombards (1228–1243) was a civil war in the Kingdom of Jerusalem and the Kingdom of Cyprus between the "Lombards" (also called the imperialists), the representatives of the Emperor Frederick II, largely from Lombardy, and the Eastern aristocracy led first by the Ibelins and then by the Montforts. The war was provoked by Frederick's attempt to control the regency for his young son, Conrad II of Jerusalem. Frederick and Conrad represented the Hohenstaufen dynasty.