Secret Treaty of Vienna, defensive pact signed 3 January 1815 between Britain, France and Austria
Treaty of Vienna of 25 March 1815, (also known as "Treaty of General Alliance") when Austria, Britain, Prussia and Russia agreed to put 150,000 men in the field against Napoleon Bonaparte.(see wikisource:Declaration at the Congress of Vienna).
Treaty of Vienna of 9 June 1815, (also known as the "Final Act of the Congress of Vienna"), embodying all the separate treaties agreed at the Congress by the European powers.