How did the War of the Spanish Succession affect the balance of power in Europe?

The War of the Spanish Succession (1701–1714) was fundamentally a struggle to maintain the balance of power in Europe by preventing the unification of the French and Spanish crowns under the House of Bourbon.12

The conflict significantly altered the European geopolitical landscape:

• Erosion of Bourbon Power: While the Bourbon candidate, Philip V, successfully retained the Spanish throne, the war ultimately eroded French and Spanish influence.13
• Ascendancy of Britain: The treaties of Utrecht established Britain as a leading global power. Britain secured significant colonial and commercial advantages, including the acquisition of Gibraltar and Minorca, and the asiento, which granted it the exclusive right to supply enslaved people to Spanish colonies.23
• Territorial Realignment: Spain was stripped of its European possessions, including Belgium, Luxembourg, Milan, Sardinia, Sicily, and Naples, which were redistributed to other powers, thereby preventing any single dynasty from dominating the continent.23
• Shift in Alliances: The death of Emperor Joseph I in 1711 and the subsequent accession of Archduke Charles (Charles VI) to the Holy Roman Empire made a Habsburg-controlled Spanish Empire equally undesirable to the Allies, effectively ending the war and cementing the new balance of power.4