As the name says the Holy Roman Empire was an empire not a kingdom. It was established by Otto I who became the first Holy Roman emperor in 962. It did not unify the whole of Western Europe. Denmark, the Scandinavian Peninsula (Sweden, Norway and Finland) the Iberian Peninsula (Spain and Portugal) and most of France were not under this empire. Bohemia (present day Czech Republic) was.
Northern Italy broke away in 1187 Switzerland in 1291 and Holland in 1581.
No and it never will.
western europe
western and northern
The top three oil producers in Western Europe are Norway, the United Kingdom, and Denmark.
United Kingdom
No, the UK is in Western Europe. Not South America.
No Wales is in the United Kingdom in Western Europe, bordered by England and the Irish Sea.
The United Kingdom is in Europe.
portugal and united kingdom
What is the major mountain range of the United Kingdom
The most diverse countries in Western Europe are the United Kingdom, France, Germany, Italy, and Spain, most likely.
About 50 kilometers (31 miles).