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
The name given to certain papal rescripts on account of the clause motu proprio (of his own accord) used in the document. The words signify that the provisions of the rescript were decided on by the pope personally, that is, not on the advice of the cardinals or others, but for reasons which he himself deemed sufficient. The document has generally the form of a decree: in style it resembles a Brief rather than a Bull, but differs from both especially in not being sealed or countersigned. It issues from the Dataria Apostolica, and is usually written in Italian or Latin. It begins by stating the reason inducing the sovereign pontiff to act, after which is stated the law or regulation made, or the favour granted, It is signed, personally by the pope, his name and the date being always in Latin. A Motu Proprio was first issued by Innocent VIII in 1484. It was always unpopular in France, where it was regarded as an infringement of Gallican liberties, for it implied that the sovereign pontiff had an immediate jurisdiction in the affairs of the French Church. The best-known recent example of a Motu Proprio is the instructions issued by Pius X on 22 November, 1903, for the reform of church music.
The phrase motu proprio is frequently employed in papal documents. One characteristic result of its use is that a rescript containing it is valid and produces its effect even in cases where fraud would ordinarily have vitiated the document, for the words signify that the pope in granting the favour does not rely on the reasons alleged. When the clause is used in dispensations, the latter are given a broad interpretation; a favour granted motu proprio is valid even when counter to ecclesiastical law, or the decisions of the pope himself. Consequently, canonists call the clause the "mother of repose": "sicut papaver gignit somnum et quietem, ita et hæc clausula habenti eam." (See RESCRIPTS.)
REBUF, Tract. concordatorum: De forma mandati apostol. (Paris, 1538), s.v.; RIGANTI, Comment, in regul. cancellariæ apost. (Rome, 1744), , s.v. Gratia moto proprio; GIRAUD, Bibl. sacra (Milan, 1535).
A. A. MacErlean.