Friedrich Bernard Christian Maassen
United Sees of Macerata and Tolentino
Vicariate Apostolic of Mackenzie
Marie-Edmé-Patrice-Maurice de MacMahon
Joseph-Anna-Marie de Moyria de Mailla
François-Pierre-Gonthier Maine de Biran
Françoise, Marquise de Maintenon
Joseph-Marie, Comte de Maistre
Marcellinus of Civezza, O.F.M.
Margaret of the Blessed Sacrament
Prefecture Apostolic of Mariana Islands
Congregation of the Missionaries of Mariannhill
Sts. Maris, Martha, Audifax, and Abachum
Lucius Perpetuus Aurelianus Marius Maximus
Vicariate Apostolic of Marquesas Islands
Moral and Canonical Aspect of Marriage
Diocese of Marseilles (Massilia)
Vicariate Apostolic of the Marshall Islands
Diocese of Marsico Nuovo and Potenza
Luigi Ferdinando, Count de Marsigli
Missionaries of the Company of Mary
Servants of Mary (Order of Servites)
Society of Mary (Marist Fathers)
St. Mary Frances of the Five Wounds of Jesus
Richard Angelus a S. Francisco Mason
Devises and Bequests for Masses (United States)
Feast of the Maternity of the Blessed Virgin Mary
Marcus Aurelius Valerius Maximianus
Caius Julius Verus Maximinus Thrax
Prefecture Apostolic of Mayotte, Nossi-Bé, and Comoro
Charles Joseph Eugene de Mazenod
Abbey and Congregation of Melk
Vicariate Apostolic of Méndez and Gualaquiza
Francisco Sarmiento de Mendoza
Corporal and Spiritual Works of Mercy
Sisters of Mercy of St. Borromeo
Frédéric-François-Xavier Ghislain de Mérode
Delegation Apostolic of Mesopotamia, Kurdistan, and Armenia
Metal-Work in the Service of the Church
Prince Klemens Lothar Wenzel von Metternich
Francis, Joseph, and Paul Mezger
Military Orders of St. Michael
Giovanni Francesco Pico della Mirandola
Congregation of the Sisters of Misericorde
Prefecture Apostolic of Misocco and Calanca
Congregation of Priests of the Mission
Congregation of Missionaries of St. Charles Borromeo
Missionaries of St. Francis de Sales of Annecy
Missionary Society of St. Paul the Apostle
Mission Indians (of California)
Catholic Indian Missions of Canada
Catholic Indian Missions of the United States
François-Napoléon-Marie Moigno
Diocese of Molfetta, Terlizzi, and Giovinazzo
Jean-Baptiste Poquelin Molière
Principality and Diocese of Monaco
Canonical Erection of a Monastery
Monophysites and Monophysitism
Monothelitism and Monothelites
Montagnais Indians (Chippewayans)
Charles-Forbes-René, Comte de Montalembert
Marquis de Louis-Joseph Montcalm-Gozon
Diocese of Monterey and Los Angeles
Charles-Louis de Secondat, Baron de Montesquieu
Anne, First Duke of Montmorency
Alexis-François Artaud de Montor
Antoine-Jean-Baptiste-Robert Auget, Baron de Montyon
Dioceses of Mostar and Markana-Trebinje
Feast of the Most Pure Heart of Mary
Toribio de Benavente Motolinia
Congregations of Mount Calvary
Feast of Our Lady of Mount Carmel
Karl Ernst, Freiherr von Moy de Sons
Johann Chrysostomus Wolfgang Amadeus Mozart
St. Clair Augustine Mulholland
Baron Eligius Franz Joseph von Münch-Bellinghausen
Archdiocese of Munich-Freising
Franciscan, philosopher and theologian, born near Forli, at Meldola, ltaly, in 1602; died 3 January, 1673. He was one of the most prominent writers of his time on philosophy and theology. He received his early education at Cesena, and took degrees at the University of Bologna. He also frequented the Universities of Padua and Rome before assuming the duties of lecturer. He acquired a profound knowledge of scholastic philosophy and theology, being deeply versed in the writings of Scotus. He was an open-minded and independent scholar. As a controversialist he was harsh and arrogant towards his opponents, mingling invective with his arguments. His opinions on some philosophical questions were fiercely combatted by many of his contemporaries and especially by Matthew Ferchi and the Irish Franciscan, John Ponce. When presenting the second volume of his work on the "Sentences" to Alexander VII, to whom he had dedicated it, the pope asked him where he had learned to treat his opponent Ferchi in such a rough manner: Mastrius answered, "From St. Augustine and St. Jerome, who in defence of their respective opinions on the interpretation of Holy Scripture fought hard and not without reason": the pope smilingly remarked, "From such masters other things could be learned". Ponce in his treatise on Logic holds that with qualifying explanations God may be included in the Categories. Mastrius in combatting this opinion characteristically says, "Hic Pontius male tractat Deum sicut et alter". Mastrius had a well-ordered intellect which is seen in the clearness and precision with which he sets forth the subject-matter of discussion. His arguments for and against a proposition show real critical power and are expressed in accurate and clear language. His numerous quotations from ancient and contemporary authors and various schools of thought are a proof of his extensive reading. His works shed light on some of the difficult questions in Scotistic philosophy and theology. His "Philosophy" in five volumes folio, his "Commentaries" on the "Sentences" in four volumes, and his Moral Theology "ad mentem S. Bonaventurae" in one volume were all published in Venice.
GREGORY CLEARY