an old French historian, was the son of the famous Abbot Angilbert, and of Bertha, the daughter of Charlemagne, and was born at some date before 790. Succeeding his father as duke or count of the maritime coast, he seems to have risen to an influential position at court. After the death of his uncle Louis Le Débonnaire in 840, his services were employed to effect a reconciliation between the three sons of that monarch; but he was unsuccessful in his negotiations, and it was soon his duty to record the war which broke out between the brother princes. His death took place in 858 or 859, in consequence of a wound which he received in repelling an invasion of the Normans. The history of Nithard is inserted in Duchesne's Historiae Francorum Scriptores, in 5 vols. fol., Paris, 1636–41–49. A French translation has recently appeared in the Collections des Mémoires Relatifs à l'Histoire de France, of Guizot.