Quadruple Alliance may refer to: * The October 1673 alliance between the Dutch Republic, Emperor Leopold, Spain, and Charles IV, Duke of Lorraine, during the

Franco-Dutch War The Franco-Dutch War, also known as the Dutch War (french: Guerre de Hollande; nl, Hollandse Oorlog), was fought between France and the Dutch Republic, supported by its allies the Holy Roman Empire, Spain, Brandenburg-Prussia and Denmark-Nor ...

. * The 1718 alliance between Austria, France, the Netherlands, and Great Britain during the

War of the Quadruple Alliance The War of the Quadruple Alliance (1718–1720) was caused by Spanish attempts to recover territories in Italy (geographical region), Italy ceded in the 1713 Peace of Utrecht. Largely focused on Sicily, it included minor engagements in North Amer ...

. * The

Treaty of Warsaw (1745) The Treaty of Warsaw was a diplomatic agreement signed in Warsaw on 8 January 1745. Its birthplace is traced back to Leipzig, Germany. It was an agreement between Great Britain, the Habsburg monarchy, the Dutch Republic and Saxony (the Quadruple ...

between Great Britain, Austria, the Netherlands, and Saxony (the Quadruple Alliance) to uphold the Pragmatic Sanction, allowing Maria Theresa to succeed to the Habsburg dominions. * The

Quadruple Alliance (1815) The Quadruple Alliance was formed by the monarchist Great Powers of Austria, Prussia, Russia, and Great Britain to counter the military and revolutionary republican political threats posed by the expansion of the First French Empire under Napoleo ...

between the United Kingdom, Austria, Prussia, and Russia following the Napoleonic Wars. * The

1834 Quadruple Alliance The Quadruple Alliance was a treaty signed between the United Kingdom, France, Spain and Portugal on April 22, 1834, by which the four States undertook to expel from Portugal the Portuguese Infante Miguel and the Spanish Infante Carlos. With th ...

between the United Kingdom, France, Spain, and Portugal to enforce the

Concession of Evoramonte The Concession of Evoramonte, also known as the Convention of Evoramonte,Smith, p. 398 was a document signed on 26 May 1834, in Evoramonte, in Alentejo, between the Constitutionalists and the Miguelites, that ended the period of civil war (1828� ...

. * The

Quadruple Alliance (1912-1913) The League of the Balkans was a quadruple alliance formed by a series of bilateral treaties concluded in 1912 between the Eastern Orthodox kingdoms of Greece, Bulgaria, Serbia and Montenegro, and directed against the Ottoman Empire, which at the ...

, also known as the ''Balkan League'', representing a system of alliances between Bulgaria, Greece, Montenegro and Serbia * The

Quadruple Alliance (1915-1918) The Central Powers, also known as the Central Empires,german: Mittelmächte; hu, Központi hatalmak; tr, İttifak Devletleri / ; bg, Централни сили, translit=Tsentralni sili was one of the two main coalitions that fought in W ...

, formed when Bulgaria joined the other three

Central Powers The Central Powers, also known as the Central Empires,german: Mittelmächte; hu, Központi hatalmak; tr, İttifak Devletleri / ; bg, Централни сили, translit=Tsentralni sili was one of the two main coalitions that fought in ...

of World War I (Germany, Austria-Hungary, and the Ottoman Empire). * The major

Allies of World War II The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during the Second World War (1939–1945) to oppose the Axis powers, led by Nazi Germany, Imperial Japan, and Fascist Italy. ...

: the United States, Great Britain, China, and the USSR, dubbed the "Big Four" or the "

Four Policemen The "Four Policemen" was a postwar council with the Big Four that US President Franklin Roosevelt proposed as a guarantor of world peace. Their members were called the Four Powers during World War II and were the four major Allies of World War II ...

". * In Harry Turtledove's

Southern Victory Series The ''Southern Victory'' series or Timeline-191 is a series of eleven alternate history novels by author Harry Turtledove, beginning with ''How Few Remain'' (1997) and published over a decade. The period addressed in the series begins during th ...

, set in an alternate reality where the Confederate States win the

American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...

, a

Quadruple Alliance Quadruple Alliance may refer to: * The October 1673 alliance between the Dutch Republic, Emperor Leopold, Spain, and Charles IV, Duke of Lorraine, during the Franco-Dutch War. * The 1718 alliance between Austria, France, the Netherlands, and Great ...

(the United States, Germany, Austria-Hungary and the Ottoman Empire), fights in an alternate Great War (1914-1917) against the Quadruple Entente (the Confederate States, Great Britain, France and Russia).

See also