Reims Gospel (French: Texte du Sacre which means "coronation text"; also referred to in some Czech sources as the Sázava Gospel or Remešský kodex) is a richly illustrated manuscript of ancient Bulgarian origin which became part of the Reims Cathedral treasury. Henry III of France and several of his successors including Louis XIV took their oath on it. In the time of Charles IV, who gave it to the just-founded Emmaus monastery in Prague, the text was believed to have been written by the hand of St. Procopius.
Out of a total of 47 double-sided sheets, 16 sheets are written in Cyrillic (as a fragment) and 31 sheets in the Glagolitic alphabet. The book used to be richly decorated and embellished with gold, precious stones, and relics, among them a fragment of the True Cross. The precious stones and the relics probably disappeared from the book cover during the French Revolution. It features six beautiful illuminations in the Glagolitic part and several ornamental letters.
The Cyrillic part includes a pericope from 27 October to 1 March following the Greek Catholic rite. The Glagolitic part covers pericopes from Palm Sunday to the Feast of the Annunciation (March 25) following the Roman Catholic rite. In a special postscript a Bohemian monk noted: "The Year of Our Lord 1395. These Gospels and Epistles were written in the Slavic language ... the other part was written by the hand of St. Procopius, abbot, and this text was offered by Charles IV, Emperor of the Romans, to the Slavic monastery, in honor of Saint Jerome and Saint Procopius, God, please give him eternal rest. Amen."