The nations bordering Austria are: Switzerland, Germany, Czech Republic, Slovenia, Hungary, Slovakia, and Italy. I did not see your original list so I listed all the bordering countries.
The Alpine Countries include Germany, France, Monaco, Italy, Switzerland, Liechtenstein, Austria, and Slovenia. Their bordering nations include Spain, Luxembourg, Belgium, the Netherlands, Denmark, Poland, Czech Republic, Slovakia, Hungary, Croatia, San Marino, and Vatican City.
Germany, Austria-Hungary, and Italy
There are 5 countries bordering Switzerland: France, Germany, Austria, Liechtenstein and Italy.
Yugoslavia, subsequently Slovenia (bordering Italy)
Austria and Hungary are not separated from Italy by water, Austria lies between Hungary and Italy and has direct borders with both.
There are 5 countries bordering Switzerland: France, Germany, Austria, Liechtenstein and Italy.
Germany, Austria-Hungary, and Italy
Germany, Italy, and Austria-Hungary
There are 5 countries bordering Switzerland: France, Germany, Austria, Liechtenstein and Italy.
The three countries were Germany, Austria-Hungary, and Italy.
There are 5 countries bordering Switzerland: France, Germany, Austria, Liechtenstein and Italy.