Imperial Crown of the Holy Roman Empire

Imperial Crown of the Holy Roman Empire

The Imperial Crown of the Holy Roman Empire (German: Reichskrone) is the hoop crown (German: Bügelkrone) of the King of the Romans, the rulers of the German Kingdom, since the High Middle Ages. Most of the kings were crowned with it. It was made probably somewhere in Western Germany, either under Otto I (with additions by Conrad II), by Conrad II or Conrad III during the late 10th and early 11th centuries. The first preserved mention of it is from the 12th century—assuming it is the same crown, which seems very probable.

• http://en.wikipedia.org/wiki/Imperial Crown of the Holy Roman Empire