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
Bishop of Marseilles, and founder of the Congregation of the Oblates of Mary Immaculate, b. at Aix, in Provence, 1 August, 1782; d. at Marseilles 21 May, 1861. De Mazenod was the offspring of a noble family of southern France, and even in his tender years he showed unmistakable evidence of a pious disposition and a high and independent spirit. Sharing the fate of most French noblemen at the time of the Revolution, he passed some years as an exile in Italy, after which he studied for the priesthood, though he was the last representative of his family. On 21 December, 1811, he was ordained priest at Amiens, whither he had gone to escape receiving orders at the hands of Cardinal Maury, who was then governing the archdiocese of Paris against the wishes of the pope. After some years of ecclesiastical labours at Aix, the young priest, bewailing the sad fate of religion resulting among the masses from the French Revolution, gathered together a little band of missionaries to preach in the vernacular and to instruct the rural populations of Provence. He commenced, 25 January, 1816, his Institute which was immediately prolific of much good among the people, and on 17 February, 1826, was solemnly approved by Leo XII under the name of Congregation of the Oblates of Mary Immaculate.
After having aided for some time his uncle, the aged Bishop of Marseilles, in the administration of his diocese, Father De Mazenod was called to Rome and, on 14 October, 1832, consecrated titular Bishop of Icosium, which title he had, in the beginning of 1837, to exchange for that of Bioshop of Marseilles. His episcopate was marked by measures tending to the restoration in all its integrity of ecclesiastical discipline. De Mazenod unceasingly strove to uphold the rights of the Holy See, somewhat obscured in France by the pretensions of the Gallican Church. He favoured the moral teachings of Blessed (now Saint) Alphonsus Liguori, whose theological system he was the first to introduce in France, and whose first life in French he caused to be written by one of his disciples among the Oblates. At the same time he watched with a jealous eye over the education of youth, and, in spite of the susceptibilities of the civil power, he never swerved from what he considered the path of justice. In fact, by the apostolic freedom of his public utterances he deserved to be compared to St. Ambrose. He was ever a strong supporter of papal infallibility and a devout advocate of Mary's immaculate conception, in the solemn definition of which (1854) he took an active part. In spite of his well-known outspokenness, he was made a Peer of the French Empire, and in 1851 Pius IX gave him the pallium.
Meanwhile he continued as Superior General of the religious family he had founded and whose fortunes will be found described in the article on the Oblates of Mary Immaculate. Such was the esteem in which he was held at Rome that the pope had marked him out as one of the cardinals he was to create when death claimed him at the ripe age of almost seventy-nine.
Cooke, Sketches of the Life of Mgr de Mazenod, Bishop of Marseilles (London and Dublin, 1879); Rambert, Vie de Mgr D. J. E. De Mazenod (Tours, 1883); Ricard, Mgr de Mazenod, évêque de Marseille (Paris, n. d.).
A. G. Morice.