Austria relinquished its control over the Netherlands due to the signing of a treaty which occurred on which date?
Austrian Netherlands:  The period began with the acquisition of the territory by the Habsburg Monarchy under the Treaty of Rastatt in 1714 and lasted until its annexation during the aftermath of the Battle of Sprimont in 1794 and the Peace of Basel in 1795. Treaty of Campo Formio: The Treaty of Campo Formio (today Campoformido) was signed on 18 October 1797 (27 Vendémiaire VI) by Napoleon Bonaparte and Count Philipp von Cobenzl as representatives of the French Republic and the Austrian monarchy, respectively.
18 October 1797