The first French edition of The Liturgical Year by Don Geranger listed January 28 as a local feast day for Charlemagne. Below is the prayer composed by Dom Prosper Guerangest in honor of Carolus Magnus:
Hail, O Charles, beloved of God, Apostle of Christ, defender of His Church, protector of justice, guardian of good customs, terror of the enemies of the Christian name!
The tainted diadem of the Caesars – purified by the hands of Leo – sits on your august forehead; the globe of the Empire rests in your vigorous hand; the ever-victorious sword in your combats for Our Lord is sheathed at your waist, and on your forehead the imperial anointing was added to the royal unction by the hand of the Pontiff who consecrated you and confirmed your authority. As the representative of the figure of Christ in His temporal Royalty, you desired that He would reign in you and through you.
Now God rewards you for the love you had for Him, for the zeal you displayed for His glory, for the respect and confidence you showed toward His Spouse. In exchange for an earthly kingship, transitory and uncertain, you enjoy now an immortal kingdom where so many million of souls, who by your hands escaped idolatry, today honor you as the instrument of their salvation.
During the days of celebration of the birth of Our Lord by Our Lady, you offered to them the gracious temple you built in their honor (the Basilica of Aix-la-Chapelle), and which is still today the object of our admiration. It was in this place that your pious hands placed the newborn garment worn by her Divine Son. As retribution, the Son of God desired that your bones should gloriously rest in the same place to receive the testimony of the veneration of the peoples.
O glorious heir to the three Magi Kings of the East, present our souls before the One who wore such a humble garment. Ask Him to give us a part of the profound humility you had as you knelt before the Manger, a part of that great joy that filled your heart at Christmas, a part of that fiery zeal that made you realize so many works for the glory of the Infant Christ, and a part of that great strength that never abandoned you in your conquests for His Kingdom.
O mighty Emperor, you who of old was the arbiter of the whole European family assembled under your scepter, have mercy on this society that today is being destroyed in all its parts. After more than a thousand years, the Empire that the Church placed in your hands has collapsed as a chastisement for its infidelity to the Church that founded it. The nations still remain, troubled and afflicted. Only the Church can return life to them through the Faith; only she continues to be the depositary of public law; only she can govern the powerful and bless the obedient.
O Charles the Great, we beseech you to make that day arrive soon when society, re-established at its foundations, will cease asking liberty and order from the revolutions. Protect with a special love France, the most splendid flower of your magnificent crown. Show that you are always her king and father. Put an end to the false progress of the faithless empires of the North that have fallen into schism and heresy, and do not permit the peoples of the Holy Empire to fall prisoner to them. Amen.”