This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

— On the Holy Places. Found in Mabillon’s Benedictine Age III, part 2, page 502. Jean Mabillon was a Benedictine monk and the founder of the study of old documents (paleography).
— Life of Saint Columba [or Columbanus], Abbot. Found in the ancient readings of Canisius, volume 5, part 2, page 559.
— And in Surius, under the date of June 9th.
Adam of Bremen. See Bremen. A famous medieval chronicler of Northern Europe.
Adam Clement. The English voyage to the Muscovites. Found among the authors of Muscovite affairs, page 142.
Adam of Paris. Life of Saint Domnius the Bishop. Found in the Bollandists' April, volume 2, page 7. The Bollandists were a group of Jesuits who compiled the "Acta Sanctorum," a massive scholarly work on the lives of saints.
Adam the Premonstratensian. See Premonstratensian.
Adela, Countess of Blois. Two Letters. Found among the ancient writers of Edmond Martène, volume 1, part 2, page 75.
Adela, Countess of Vermandois. Grant of a prebend to the Canons of Saint Quentin of Beauvais. Found in D’Achéry’s Spicilegium, volume 2, page 314.
Empress Adelaide. Diploma regarding the estate of Saint-Germain near Compiègne. Found in Mabillon’s Diplomatics, page 604.
Adelard, Cardinal and Bishop of Verona. Letters by which he testifies that he was present at the consecration of the Bishop of Dol. Found among the ancient writers of Edmond Martène, volume 1, part 1, page 171.
Adelagus [or Adaldagus]. Letter of consolation to Flodoard. Found in the Library of the Fathers of Lyon, volume 17, page 503.
Adelealdus. See Adalbald.
Adalbert, Margrave of Tuscany. Donation to the Church of Lucca. Found in Ughelli’s Sacred Italy, volume 1, column 852.
Adelbold, Bishop of Utrecht. Life of Saint Walburga. Found in the Bollandists' February, volume 3, page 542.
— Life of Saint Henry the Emperor. Found in Canisius, volume 6, page 383.
— And in Surius, under the date of July 14th.
Empress Adelaide. Diploma for the monastery of San Salvatore in Pavia. Found in Margarini's Bullarium, volume 2, page 44.
Adelchis [or Adalgisus] Flavius. Four Diplomas for the monastery of Saints Salvatore and Julia. Found in Margarini's Bullarium, volume 2, pages 9, 15, and 16. See Desiderius.
Adelferius. Life of Saint Nicholas the Pilgrim of Trani. Found in the Bollandists' June, volume 1, page 244.
Adelfredus, Bishop of Bologna. Letters on behalf of the Canons of Bologna. Found in Ughelli’s Sacred Italy, volume 2, column 15.
Adelhelmus [also known as Adelin and Adalelm], Bishop of Sées. Life of Saint Opportuna the Virgin. Found in Surius, April 22nd, and a longer version in Mabillon’s Benedictine Age III, part 2, page 220.
— And in the Bollandists' April, volume 3, page 62.
Adelmann, Bishop of Brescia. On the body and blood of Christ against Berengar. Found in the Library of the Fathers of Lyon, volume 18, page 438. A theological treatise defending the Real Presence in the Eucharist against Berengar of Tours.
Adelmann the Scholar. Alphabetic rhythms concerning the illustrious men of his time. Found in Mabillon’s Analecta, volume 1, page 420.
Adelmus [or Ademar]. Annals of the Franks for 87 years. Found in Freher’s collection of Frankish history, part 2, page 381.
Adelwold. See Ethelwold.
Johann Adelzreitter [or Adlzreitter]
— [Johann Adelzreitter] Assertion of the Bavarian Electorate against Johann von Rusdorf. [No place given] 1644. In folio.
— History of Bavaria. Munich, by Johann Wilhelm Sebel, 1662. Two volumes in folio.
Ademar, monk of Angoulême. Chronicle of the Franks. Found in Labbé’s New Library of Manuscripts, volume 2, page 151.
— Commemoration of the Abbots of Limoges. Ibid., page 271.
— Fragment concerning Saints Adalbert and Bruno. Found in Mabillon’s Benedictine Age V, page 871.
Ademar the Monk. Acrostic. Found in Mabillon’s Analecta, volume 1, page 418.
Ademar, Abbot of Tulle. Testament. Found with Baluze’s Regino, page 628.
Adenulf of Capua, Archbishop. Acts of Saint Mark the Martyr. Found in the Bollandists' April, volume 3, page 551.
— Letter on the passion of Saint Mark, Bishop of Atina. Found in Ughelli’s Sacred Italy, volume 6, column 514.
Pope Adeodatus. Letters. Found in Labbé’s Councils, volume 6, column 523.
Adeodatus of Siena. Oration to the Fathers of the Council of Trent. Found in the Council of Trent, Louvain edition, page 392. The Council of Trent (1545–1563) was a major turning point for the Catholic Counter-Reformation.
— And in Labbé’s Councils, volume 14, column 1523.
Guillaume Ader. Commentaries on the sick and the diseases in the Gospel. Found in the London Sacred Critics, volume 9, page 3660.
The Burlesque Farewell of France to War. original: "Adieu burlesque de la France a la guerre" Paris, by Pierre du Pont, 1649. In quarto.
Robert Adimari. Privilege for a notary. Found in Ughelli’s Sacred Italy, volume 2, column 938.
Adiwald [or Adilwald], King of the Lombards. Two Diplomas. Found in Ughelli’s Sacred Italy, volume 4, column 1323. And in Margarini, volume 2, page 2.
Adlzreitter. See Adelzreitter.
Note on the Synods. Found in D’Achéry’s Spicilegium, volume 10, page 632.
Ado, Abbot. Donation to the Basilica of Reims. Found in Mabillon’s Annals, volume 2, page 694.
Ado of Vienne. Chronicle. Found in Barre’s Christian History, page 479.
— And in the Library of the Fathers of Lyon, volume 16, page 768.
— Ancient Martyrology and a booklet on the festivals of the Apostles. Found with Baronius’s Martyrology, edited by Rosweyde.
— And in the Library of the Fathers of Lyon, volume 16, page 810.
— Life of Saint Theuderius the Abbot. Found in Mabillon’s Benedictine Age I, page 678.
— Confirmation of the Church of Veille. Found in D’Achéry’s Spicilegium, volume 12, page 135.
— Martyrdom of Saint Desiderius, Bishop of Vienne. Found in the ancient readings of Canisius, volume 6, page 441.
— And in Surius, under the date of February 11th.
Adolph, King of the Romans. Letter of defiance original: "diffidationis" to Philip the Fair, King of France. Found in Leibniz’s Code, volume 1, page 32.
Adrevaldus [also called Adalbert and Albert]. History of the translation of Saints Benedict and Scholastica. Found in the Library of Fleury by Jean à Bosco, part 1, page 1. Fleury Abbey is famous for claiming the relics of St. Benedict, the founder of Western monasticism.
— And in Mabillon’s Benedictine Age II, part 2, page 353.