Short answers, pulled from the story.
Napoleon Bonaparte and Count Philipp von Cobenzl signed the Treaty of Campo Formio on the 17th of October 1797. They met in a small house owned by Bertrando Del Torre to finalize the agreement.
Austria lost the Austrian Netherlands which became part of modern Belgium and certain Mediterranean islands including Corfu to France. The treaty also transferred Venetian possessions in the Ionian Sea and the Bay of Kotor region to French control.
The Republic of Venice ended definitively when Austrian troops entered the city on the 18th of January 1798. Ludovico Manin appeared as a guest of honour at an official reception three days after this entry before the republic was disbanded.
Diplomatic efforts collapsed when the Congress of Rastatt failed to achieve lasting peace for the Holy Roman Empire. By early 1799 France and Austria found themselves once again at war due to these unresolved tensions.
The treaty was signed in a small house located west of Udine in Friuli between Austrian headquarters and Bonaparte's residence at Villa Manin. This village sat near Codroipo where Ludovico Manin had once owned a country mansion.