When did the term Holy Roman Empire first appear?

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The term "Holy Roman Empire" did not appear until 1254. While the empire is often associated with its inception in 800 under Charlemagne, this title is anachronistic when applied to the early medieval period.12

The evolution of the name occurred in stages:
* 1034: The term "Roman Empire" was used to denote the lands under Conrad II.12
* 1157: The term "Holy Empire" (sacrum imperium) emerged during the reign of Frederick Barbarossa as a way to assert the empire's independence from church authority.12
* 1254: The precise designation "Holy Roman Empire" (Sacrum Romanum Imperium) finally appeared during the intense conflict between the Hohenstaufen dynasty and the papacy.12

Applying this title to the empire before the 13th century is historically inaccurate, as the concept of a "holy" empire was not explicitly articulated until the 12th century.1