The Siege of Genoa took place in 1747 when an Austria

Austria

Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

n army under the command of Count Schulenberg launched a failed attempt to capture the capital

Genoa

Genoa |Ligurian]] Zena ; Latin and, archaically, English Genua) is a city and an important seaport in northern Italy, the capital of the Province of Genoa and of the region of Liguria....

 of the Republic of Genoa

Republic of Genoa

The Most Serene Republic of Genoa |Ligurian]]: Repúbrica de Zêna) was an independent state from 1005 to 1797 in Liguria on the northwestern Italian coast, as well as Corsica from 1347 to 1768, and numerous other territories throughout the Mediterranean....

.

The Austrians had captured and then lost

Siege of Genoa (1746)

The Siege of Genoa took place in 1746 during the War of the Austrian Succession when an Allied force of Austrians, Sardinians soldiers and British sailors besieged the capital of the Republic of Genoa. The city ultimately surrendered to the Austrian commander Antoniotto Botta Adorno, after being...

 Genoa the previous year and made it the central objective of their strategy for 1747 before they would consider further operations against Naples

Naples

Naples is a city in Southern Italy, situated on the country's west coast by the Gulf of Naples. Lying between two notable volcanic regions, Mount Vesuvius and the Phlegraean Fields, it is the capital of the region of Campania and of the province of Naples...

 or an invasion of France

Invasion of France

The Invasion of France may refer to one of the following:* Invasion of France , a failed Austro-Italian invasion attempt against southern France supported by the British navy...

. Schulenberg's force reached the outskirts of the city in April, but realising they needed more troops they waited until twelve battalions of infantry from their Sardinian

Kingdom of Sardinia

The Kingdom of Sardinia consisted of the island of Sardinia first as a part of the Crown of Aragon and subsequently the Spanish Empire , and second as a part of the composite state of the House of Savoy . Its capital was originally Cagliari, in the south of the island, and later Turin, on the...

 allies arrived in June. The delay allowed the French

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 and Spanish

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 to send reinforcements to the city under Joseph Marie, Duke of Boufflers to bolster the garrison.

The approach of a Franco-Spanish force under Marshal Belle-Isle and General Las Minas pressured the Sardinians to withdraw to try and defend a possible threat to Milan

Milan

Milan is the second-largest city in Italy and the capital city of the region of Lombardy and of the province of Milan. The city proper has a population of about 1.3 million, while its urban area, roughly coinciding with its administrative province and the bordering Province of Monza and Brianza ,...

, and Schulenberg then abandoned the siege blaming the Sardinians. The failed siege led to recriminations between Vienna

Vienna

Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...

 and Turin

Turin

Turin is a city and major business and cultural centre in northern Italy, capital of the Piedmont region, located mainly on the left bank of the Po River and surrounded by the Alpine arch. The population of the city proper is 909,193 while the population of the urban area is estimated by Eurostat...

 with both complaining to their British

Kingdom of Great Britain

The former Kingdom of Great Britain, sometimes described as the 'United Kingdom of Great Britain', That the Two Kingdoms of Scotland and England, shall upon the 1st May next ensuing the date hereof, and forever after, be United into One Kingdom by the Name of GREAT BRITAIN. was a sovereign...

 allies in London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

about the alleged betrayal of the other.