The empire was made up of hundreds of estates of various sizes and covered an area now occupied by Austria, the Czech Republic, eastern France, Germany, Switzerland, the Low Countries, and parts of Italy.
मध्य युग के दौरान, यूरोप में रोमन कैथोलिक चर्च और पवित्र रोमी साम्राज्य सबसे ताकतवर था ।