set himself in motion towards the Rhine, to reduce him to submission; but, on arriving close to Mayence, he caught a violent fever, and died on the 20th of June, 840, at the castle of Ingelheim, on a little island in the river.  His last acts were a fresh proof of his goodness towards even his rebellious sons, and of his solicitude for his last-born.  He sent to Louis the Germanic his pardon, and to Lothaire the golden crown and sword, at the same time bidding him fulfil his father’s wishes on behalf of Charles and Judith.

There is no telling whether, in the credulousness of his good nature, Louis had, at his dying hour, any great confidence in the appeal he made to his son Lothaire, and in the impression which would be produced on his other son, Louis of Bavaria, by the pardon bestowed.  The prayers of the dying are of little avail against violent passions and barbaric manners.  Scarcely was Louis the Debonnair dead, when Lothaire was already conspiring against young Charles, and was in secret alliance, for his despoilment, with Pepin II., the late king of Aquitaine’s son, who had taken up arms for the purpose of seizing his father’s kingdom, in the possession of which his grandfather Louis had not been pleased to confirm him.  Charles suddenly learned that his mother Judith was on the point of being besieged in Poitiers by the Aquitanians; and, in spite of the friendly protestations sent to him by Lothaire, it was not long before he discovered the plot formed against him.  He was not wanting in shrewdness or energy; and, having first provided for his mother’s safety, he set about forming an alliance, in the cause of their common interests, with his other brother, Louis the Germanic, who was equally in danger from the ambition of Lothaire.  The historians of the period do not say what negotiator was employed by Charles on this distant and delicate mission; but several circumstances indicate that the Empress Judith herself undertook it; that she went in quest of the king of Bavaria; and that it was she who, with her accustomed grace and address, determined him to make common cause with his younger against their eldest brother.  Divers incidents retarded for a whole year the outburst of this family plot, and of the war of which it was the precursor.  The position of the young King Charles appeared for some time a very bad one; but “certain chieftains,” says the historian Nithard, “faithful to his mother and to him, and having nothing more to lose than life or limb, chose rather to die gloriously than to betray their king.”  The arrival of Louis the Germanic with his troops helped to swell the forces and increase the confidence of Charles; and it was on the 21st of June, 841, exactly a year after the death of Louis the Debonnair, that the two armies, that of Lothaire and Pepin on the one side, and that of Charles the Bald and Louis the Germanic on the other, stood face to face in the neighborhood of the village of Fontenailles, six leagues from Auxerre,