Per idem tempus Nortmannorum classis Wal fiuvium ingressa Niumaga palatio regio applicuit ibique castra posuit. Quod factum cum ad notitiam Ludowici perlatum esset, absque dilatione cum exercitu venit et munitionem obsidione clausit. Conserto nonnullis diebus certamine non adeo prevaluit, quia palatium ingentis magnitudinis mirique operis hostibus tutissimum prebebat receptaculum.
Translation :
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Edition :
Reginonis abbatis Prumiensis - Chronica, In: R. Rau, Quellen zur karolingischen Reichsgeschichte 3 (FSGA 7), Darmstadt, 180-318.
Remark :
long-term consequence: Louis the Younger agrees to lift the siege, under the condition that the Northmen leave will leave his lands. They comply, but not before setting the palace on fire.