What is Third Treaty of San Ildefonso?
The '''Third Treaty of San Ildefonso''' (short for the '''Preliminary and Secret Treaty between the French Republic and His Catholic Majesty the King of Spain, Concerning the Aggrandizement of His Royal Highness the Infant Duke of Parma in Italy and the Retrocession of Louisiana''') was a [[treaty]] between [[France]] and [[Spain]]. In it, Spain gave the [[territory]] of [[Louisiana (New France)|Louisiana]] to France. {{history-stub}} [[Category:Treaties of France|San Ildefonso, third]] [[Category:Treaties of Spain]]