Summary

1911 Encyclopædia Britannica, Volume 15… (1911)

Carloman, the opponent of Charles’s son Louis, soon after invaded northern Italy, and, securing the support of the bishops and counts, demanded from the pope the imperial crown. John attempted to temporize, but Lambert, duke of Spoleto, a partisan of Carloman, whom sickness had recalled to Germany, entered Rome in 878 with an overwhelming force, and for thirty days virtually held John a prisoner in St Peter’s.
Source: Wikisource

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