Hagano was a petty nobleman (mediocris) who achieved influence in Lotharingia and West Francia during the rule of Charles the Simple (898–922).
The aristocracy despised him, however, and the authority of Charles over the nobles was severely weakened by Hagano's presence at court.
[1] Charles' sin appears to be transferring grants in benefice, especially of monasteries, from his barons to Hagano.
[2] In 919, the West Frankish barons refused to assist the king in repelling a Magyar invasion.
French historian Charles Bémont edited a document (#5 in manuscript 9016 of the Bibliothèque nationale de France) for the pièces justificatives of his biography of Simon de Montfort in which a baron reminds Henry III of England of what happened to "Charles l'Assoté" when he listened too closely to unpopular advisors.