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The title continued in the Carolingian family until 888 and from 896 to 899, after which it was contested by the rulers of Italy in a series of civil wars until the death of the last Italian claimant, Berengar I, in 924. In theory and diplomacy, the emperors were considered primus inter pares, regarded as first among equals among other Catholic monarchs across Europe. On 25 December 800, Pope Leo III crowned the Frankish king Charlemagne as Roman emperor, reviving the title in Western Europe more than three centuries after the fall of the earlier ancient Western Roman Empire in 476. The empire reached the apex of territorial expansion and power under the House of Hohenstaufen in the mid-thirteenth century, but overextending led to partial collapse. The functioning of government depended on the harmonious cooperation between monarch and vassals, but this harmony was disturbed during the Salian period. įrom the accession of Otto I in 962 until the twelfth century, the Empire was the most powerful monarchy in Europe. The Holy Roman Empire, officially known as the Holy Roman Empire of the German Nation after 1512, was a political entity in Western, Central, and Southern Europe that developed in the Early Middle Ages and continued until its dissolution in 1806 during the Napoleonic Wars.
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