Question

What physical feature separates the italian peninsula from the holy roman empire?

Answer 1

The physical feature separates the Italian peninsula from the holy roman empire is the Alps. 

The valleys of the Alps have been possessed since ancient circumstances. The Alpine culture, which created there, fixates on transhumance. 
The interest that the Alps applied on the British must be identified with the general increment in appeal and interest of this mountain extend amid the eighteenth century. However British particularities were included too. Customarily, numerous Englishmen felt the fascination of the Mediterranean, which was related with the act of the Grand Tour, and consequently needed to cross Europe and the Alps to achieve it.

Answer 2

The alps are the physical feature that separates the Italian peninsula from the Holy Roman Empire.

The mountain range named as Alps is the most extensive and highest existing in Europe which extends roughly 1,200 kilometres across eight Alpine countries including  France, Switzerland, Monaco, Italy, Liechtenstein, Austria, Germany, and Slovenia. The Italian peninsula stretches north-south from the southern Alps to the central Mediterranean Sea.

The Holy Roman Empire was formed by the areas today occupied by the Netherlands, Belgium, Luxembourg, Switzerland, Austria, the Czech and Slovak Republics, eastern France, northern Italy, Slovenia, and western Poland.