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Altmann, Blessed Altmann, Blessed- Short biography of the eleventh-century bishop of Passau, driven from his see for enforcing Pope Gregory VII's call for clerical celibacy. Aunarius, Saint Aunarius, Saint- Bishop of Auxerre, d. 603. Albert Berdini of Sarteano, Blessed Albert Berdini of Sarteano, Blessed- Short biography of the Franciscan famed as a preacher. Aelred, Saint Aelred, Saint- Cistercian abbot, homilist, spiritual writer, d. 1166 or 1167. Abban of New Ross, Saint Abban of New Ross, Saint- Contemporary of St. Abban of Magheranoidhe, and often confused with St. Evin of Rosglass. Attala, Saint Attala, Saint- Burgundian monk, companion of St. Columban in exile, co-founder and abbot of Bobbio, d. 627. Ambrose, Saint Ambrose, Saint- Article on the life and teachings of this Bishop of Milan, and Doctor of the Church, who died in 397. Adeodatus, Pope Saint Adeodatus, Pope Saint- Brief article on this Roman monk, opponent of Monothelitism, d. 676. Called Adeodatus II to distinguish him from his predecessor St. Deusdedit, who is also … Anastasius I, Pope Saint Anastasius I, Pope Saint- Article on the pope remembered chiefly for condemning Origenism, d. 401. Aidan of Lindisfarne, Saint Aidan of Lindisfarne, Saint- Irish monk, first bishop of Lindisfarne, d. 651. Avitus, Saint Avitus, Saint- Anti-Arian Bishop of Vienne, converted King Sigismund, was a renowned poet, d. about 518. Austremonius, Saint Austremonius, Saint- Apostle of Auverne, said to have been the first bishop of Clermont. Probably early fourth century. Anastasius, Saint Anastasius, Saint- Bishop of Antioch, exiled by the emperor, restored to his see in 593 by St. Gregory the Great. Anastasius died in 598. Agatho, Pope Saint Agatho, Pope Saint- Short article on St. Agatho the Wonderworker, a Sicilian believed to have been over 100 years old at the time of his election. He died in 681. Ailbe, Saint Ailbe, Saint- A disciple of St. Patrick and bishop of Emly, died in the first half of the sixth century. Aphian, Saint Aphian, Saint- Martyred in about 306 at the age of 18. Adalard, Saint Adalard, Saint- Grandson of Charles Martel. Adalard was abbot of Corbie, and Pepin's prime minister. He died in 827. Augustine of Hippo, Life of Saint Augustine of Hippo, Life of Saint- Biography, with extensive hyperlinks to related articles. Augustine, Rule of Saint Augustine, Rule of Saint- Names the five documents sometimes identified as the Rule of Augustine, quickly narrows the field to two contenders, settles on Letter 211. Also deals wi… Augustine of Hippo, Works of Saint Augustine of Hippo, Works of Saint- Annotated bibliography of Augustine's principal writings. Augustine of Hippo, Teaching of Saint Augustine of Hippo, Teaching of Saint- Article on Augustine as a Doctor of the Church, and his influence in the history of philosophy and theology. Particular interest in his teac… Assicus, Saint Assicus, Saint- St. Patrick's coppersmith, also a renowned bellfounder, Bishop of Elphin. Auxentius of Mopsuestia (360) Auxentius of Mopsuestia (360)- Although he is identified in the Roman Martyrology, at least one scholar thinks that this bishop was an Arian. Asaph, Saint Asaph, Saint- First bishop of the Welsh town named after him. Second half of sixth century. Anatolius, Saint Anatolius, Saint- Third-century bishop of Laodicea, mathematician, scientist, philosopher. Angilbert, Saint Angilbert, Saint- Abbot of Centula, fathered two children by Charlemagne's unmarried daughter Bertha. He died in 814. Apollonia, Saint Apollonia, Saint- A virgin, possibly ordained, martyr at Alexandria in late 248 or early 249. Arsenius, Saint Arsenius, Saint- A Roman, was tutor to the emperor's children before fleeing to the monastery of St. John the Dwarf. Arsenius died in 450. Apollinaris, Saint Apollinaris, Saint- Born in Vienne, became bishop of Valence, was exiled to Sardinia, d. 520. Alcmund, Saint Alcmund, Saint- Bishop of Hexham, died 781.