What happened to the Holy Roman Empire after Charlemagne's death?

Charlemagn'es Death and Succession in 813, Charlemagne crowned his son Louis the Pious (778-840), king of Aquitaine,

Explanation:as co-emperor. Louis became sole emperor when Charlemagne died in January 814, endng his reign for more than four decades... Charlemagne was buried as the cathedral in Aachen

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