The prospect of Bourbons on both the French and Spanish thrones was resisted as creating an imbalance of power in Europe by its dominant regimes and, upon Charles II's death on 1 November 1700, a Grand Alliance of European nations united against Philip. This was known as the War of Spanish Succession. In the Treaty of Utrecht, signed on 11 April 1713, Philip was recognized as king of Spain but his renunciation of succession rights to France was affirmed and, of the Spanish Empire's other European territories, Sicily was ceded to Savoy, and the Spanish Netherlands, Milan and Naples were allotted to the Austrian Habsburgs.