Pope Leo III
Pepin spent the winter of 762 at Quierzy. Charlemagne convoked an assembly of the nobles here in January 775, in preparation of his invasion of Saxony. In 804 Pope Leo III met Charlemagne at Quierzy before proceeding to Aachen. In December 842 Charles the Bald married Ermentrude d'Orléans at Quierzy.