He was the eldest son of General Joseph Léopold Sigisbert Hugo and his wife, the artist Sophie Trébuchet.
[1] Two years later, the Comte d’Artois (who would later become King Charles X), made him and his brothers Knights in the Order of The Lily; in recognition of the role their mother had played in supporting the Malet Coup.
In 1819, he helped his brothers Victor and Eugène [fr] establish Le Conservateur littéraire, a Royalist literary magazine.
A strong supporter of Monarchism, he abandoned his Legitimist positions around 1833; a time that corresponds to the writing of his two major works on Napoleon and the French military.
[1] In addition to his published works, he contributed to the Revue des deux Mondes, as well as the military periodicals Le Spectateur militaire and the Journal de l’Armée.