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The diplomats completed their negotiations and signed the preliminary Treaty of Paris on November 3, 1762. Spanish and French negotiators also signed the Treaty of San Ildefonso simultaneously, which confirmed the cession of French Louisiana to Spain.

== How did the Treaty of Paris alter the balance of power in North America? ==

Although British King George III and his ministers favored the treaty, it was unpopular with the British public. However, the treaty contained enough concessions to war hawks that the British Parliament ratified the Treaty of Paris by a majority of 319 to 64. The treaty went into effect on February 10, 1763.