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1845–1926 · Contemporary

Mariano de Jesús Euse Hoyos (14 October 1845 - 13 July 1926) was a Colombian Roman Catholic priest ordained in 1872 for the Diocese of Santa Rosa de Osos.

1905–1983 · Contemporary · Augustinians

Mariano de la Mata Aparício, OSA (31 December 1905 - 5 April 1983) was a Spanish Catholic priest and a professed member of the Order of Saint Augustine. He joined the missions in Brazil where he served until his death and was known for his educational work with the poor.

1684–1759 · Modern

Marie Louise Trichet, also known as Marie-Louise de Jésus (1684–1759), was a French Catholic figure who, with Louis de Montfort, founded the Congregation of religious women called Daughters of Wisdom and since the age of seventeen devoted her life to caring for the poor and the s…

1653–1744 · Modern · Dominican Order

Marie Poussepin (14 October 1653 – 24 January 1744) was a French Dominican who founded the congregation of the Dominican Sisters of Charity of the Presentation.

1811–1849 · Modern · Sisters of the Holy Names of Jesus and Mary

Marie-Rose Durocher, SNJM (6 October 1811 – 6 October 1849) was a Canadian Catholic religious sister who founded the Sisters of the Holy Names of Jesus and Mary. She was beatified in 1982.

1841–1884 · Modern

Marie Deluil-Martiny (28 May 1841 – 27 February 1884), known in religion as Marie of Jesus, was a French Catholic religious sister and the founder of the Daughters of the Heart of Jesus. She was murdered by the convent's gardener in 1884.

1661–1717 · Modern · Order of Discalced Nuns of the Blessed Virgin Mary of Mount Carmel

Marianna Fontanella, OCD (7 January 1661 – 16 December 1717), also known as Maria degli Angeli or Mary of the Angels, was an Italian Catholic member of the Discalced Carmelites.

1566–1618 · Reformation · Order of Discalced Nuns of the Blessed Virgin Mary of Mount Carmel

Marie of the Incarnation, OCD, also known as Madame Acarie (1 February 1566–18 April 1618), was the foundress of the Discalced Carmel in France and later became an extern sister of the order.

1939–1964 · Contemporary

Marie-Clémentine Anuarite Nengapeta (29 December 1939 – 1 December 1964), born Anuarite Nengapeta, was a Congolese Catholic martyr and member of the Sisters of the Holy Family. Her mother had all her children along with her baptized in 1945.

1878–1897 · Modern · Poor Clares

Jeanne-Germaine Castang (24 May 1878 – 30 May 1897) – in religious Marie-Céline of the Presentation – was a French Roman Catholic nun from the Poor Clares.

1765–1794 · Modern · Order of Discalced Nuns of the Blessed Virgin Mary of Mount Carmel

The Martyrs of Compiègne were the 16 members of the Carmel of Compiègne, France: 11 Discalced Carmelite nuns, three lay sisters, and two externs (or tertiaries).

1840–1912 · Contemporary · Little Sisters of the Holy Family (Sherbrooke)

Marie-Léonie Paradis, PSSF (born Virginie-Alodie Paradis but raised as Élodie Paradis; 12 May 1840 – 3 May 1912) was a French-Canadian Catholic religious sister from Quebec who established the Little Sisters of the Holy Family in 1880, dedicated to the domestic needs in the field…

1840–1881 · Modern

Marie-Élisabeth Turgeon (7 February 1840 – 17 August 1881), born as Élisabeth Turgeon, was a Canadian religious sister and the founder of the Sisters of Our Lady of the Rosary. She assumed the name Marie-Élisabeth as her religious name.

1900–1945 · Contemporary

Mario Ciceri (8 September 1900 – 4 April 1945) was an Italian Roman Catholic priest from Milan. He was born to farmers and had an inclination to enter the priesthood since his childhood; he studied in Bergamo and in Milan before he was ordained as a priest at the Duomo in 1924 an…

1910–1950 · Contemporary

Mario Vergara (16 November 1910 – 24 May 1950) was an Italian Catholic priest of the Pontifical Institute for Foreign Missions who was killed in Burma (now Myanmar) in 1950. He was beatified in 2014 after the recognition of his martyrdom.

1570–1601 · Reformation · Benedictines

Mark Barkworth, OSB (alias Mark Lambert; c. 1572 – 1601) was a Catholic priest, oblate of the Order of St Benedict, and martyr. Born around 1572 at Searby, Lincolnshire, he studied for a time at Oxford, though no record remains of his stay there.

1631–1699 · Reformation · Order of Friars Minor Capuchin

Mark of Aviano (Italian: Marco d'Aviano), born Carlo Domenico Cristofori (November 17, 1631 – August 13, 1699) was an Italian Capuchin friar. In 2003, he was beatified by Pope John Paul II.

1100–1142 · Medieval · Premonstratensians

Marquard is a small farming town in the Free State province of South Africa that serves Winburg in the northwest. The town was set up in 1905 by an influential Dutch Reform minister, JJ Marquard, with the help of Christoffel Cornelis Froneman, the commandant of the Orange Free St…

1874–1904 · Contemporary · Congregation of the Mission

Marta Anna Wiecka (12 January 1874 - 30 May 1904) was a Polish Roman Catholic nun of the Vincentian Sisters. She assumed the name of "Maria" upon taking her vows. Wiecka worked throughout her life as a nurse in various hospitals in both Poland and Ukraine.

1816–1883 · Modern

Aimée-Adèle Le Bouteiller (2 December 1816 - 18 March 1883) was a French religious sister of the Sisters of Marie Madeleine Postel. She assumed the religious name Marthe and became noted for her work for the congregation in a range of capacities.

1895–1936 · Contemporary · Order of Friars Minor Capuchin

Martí de Barcelona (the religious name of Jaume Bagunyà i Casanovas; c. 1895–1936) was a Catalan Capuchin historian. He was born in Barcelona in c. 1895. He entered the convent of the Sarrià Capuchins and got his degree in history at the Catholic university of Louvain.

1632–1668 · Reformation

Mary Catherine of St. Augustine, OSA (French: Marie-Catherine de Saint-Augustin) (3 May 1632 – 8 May 1668) was a French canoness regular who was instrumental in the development of the Hôtel-Dieu de Québec in the colony of New France.

1819–1876 · Modern · Poor Sisters of St. Francis

Mary Frances Schervier, (German: Franziska Schervier; 3 January 1819 – 14 December 1876) was a German Catholic nun who founded two congregations of religious sisters of the Third Order Regular of St. Francis, both committed to serving the neediest of the poor.

1863–1899 · Modern · Good Shepherd Sisters

Mary of the Divine Heart (Münster, 8 September 1863 – Porto, 8 June 1899), born Maria Droste zu Vischering, was a German noblewoman and religious sister of the Catholic Congregation of Our Lady of Charity of the Good Shepherd.

1920–1990 · Contemporary · Good Shepherd Sisters

Antonia Luzmila Rivas "Aguchita" López, RGS (María Agustina in religion; 13 June 1920 – 27 September 1990) was a Peruvian Catholic religious sister of the Congregation of Our Lady of Charity of the Good Shepherd. Rivas studied in Lima before she became a religious sister.

1898–1919 · Contemporary · Daughters of Jesus (Salamanca)

María Antonia Bandrés Elósegui (6 March 1898 – 27 April 1919) was a Spanish Roman Catholic professed religious from the Daughters of Jesus. She lived a brief life but was noted for her ardent faith and her Marian devotion while also being known for the effect she had on the faith…

1898–1993 · Contemporary

María Berenice Hencker (14 August 1898 – 25 July 1993), born as Ana Julia Duque Hencker, was a Colombian religious sister and the founder of the Little Sisters of the Annunciation.

1848–1918 · Contemporary · Sisters Servants of Mary

María Catalina Irigoyen Echegaray (25 November 1848 - 10 October 1918) - in religious María Desposorios - was a Spanish Roman Catholic professed religious and a professed member from the Siervos de María Ministros de los Enfermos.

1848–1918 · Contemporary

María Dolores Rodríguez Sopeña, ICDS (30 December 1848 – 10 January 1918) was a Spanish Catholic nun and the founder of the Sisters of the Catechetical Institute.

1925–1959 · Contemporary · Order of Discalced Nuns of the Blessed Virgin Mary of Mount Carmel

María Guggiari Echeverría, OCD (María Felicia de Jesús Sacramentado in religion; 12 January 1925 – 28 April 1959), was a Paraguayan Discalced Carmelite who served in her adolescence as a member of Catholic Action.

1904–1981 · Contemporary

Manuela de Jesús Arias Espinosa (7 July 1904 – 22 July 1981), also known by her religious name María Inés Teresa of the Blessed Sacrament, was a Mexican religious sister in the Roman Catholic Church and the founder of both the Poor Clare Missionaries of the Blessed Sacrament (194…

1906–1945 · Contemporary

María Pilar Izquierdo Albero (27 July 1906 – 27 August 1945) was a Spanish religious sister who founded the Missionary Work of Jesus of Mary (1939).

1781–1853 · Modern · Sisters of Charity of St. Anne

María Rafols Bruna (5 November 1781 – 30 August 1853) was a Spanish Roman Catholic nun, mystic and the co-founder of the Congregation of the Sisters of Charity of Saint Anne that she established alongside the Catholic priest Juan Bonal Cortada.

1881–1936 · Contemporary · Order of Discalced Nuns of the Blessed Virgin Mary of Mount Carmel

Elvira Moragas Cantarero, religious name María Sagrario de San Luis Gonzaga, (8 January 1881 – 15 August 1936) was a Spanish nun of the Order of the Discalced Carmelites of the Blessed Virgin Mary of Mount Carmel.

1560–1640 · Reformation · Order of Discalced Nuns of the Blessed Virgin Mary of Mount Carmel

María López de Rivas Martínez, OCD (18 August 1560 – 13 September 1640), in religion María of Jesus, was a Spanish Discalced Carmelite. She was beatified on 14 November 1976. María López de Rivas Martinez was born in Spain on 18 August 1560 into a life of wealth.

1834–1899 · Modern · Franciscans

María del Carmen González-Ramos García-Prieto de Muñoz (30 June 1834 – 9 November 1899), also known by her religious name María del Carmen of the Child Jesus, was a Spanish Roman Catholic professed religious and the founder of the Franciscan Sisters of the Sacred Hearts.

1821–1885 · Modern · Third Order of Saint Francis

María del Tránsito Cabanillas (15 August 1821 – 25 August 1885) was an Argentine Roman Catholic Franciscan tertiary and the founder of the Franciscan Tertiary Missionary Sisters. Upon her solemn profession she assumed the religious name María del Tránsito de Jesús Sacramentado.

1580–1607 · Reformation

Mathew Flathers (Matthew; alias Major) (c. 1580 – 21 March c. 1607) was an English Roman Catholic priest. He is a Catholic martyr, beatified in 1987. Born at Weston, West Riding of Yorkshire, Flathers was educated at Douai, graduating on 5 June 1605.

955–999 · Medieval

Matilda (December 955 – February 999), also known as Mathilda and Mathilde, was a German regent, and the first Princess-Abbess of Quedlinburg.

1420–1470 · Medieval · Dominican Order

Matthew Carreri, (Italian: Matteo Carreri; ca 1420 – 5 October 1470) was a Dominican friar noted for the "austerity of his life." He was the spiritual instructor of Stephana de Quinzanis, and like her, an alleged stigmatic.

1376–1450 · Medieval · Order of Friars Minor

Matteo da Gimara, OFM (also known as Matthew of Agrigento; c. 1376 – 7 January 1450) was an Italian Catholic prelate and a professed member of the Order of Friars Minor. He served as the Bishop of Agrigento from 17 September 1442 until his resignation in mid-1445.

1080–1136 · Medieval · Benedictines

Matthew of Albano (Matthieu, O.S.B.Clun.) (died 1134) was a French Benedictine monk and Cardinal, and papal legate. He is a Catholic saint. He was instrumental in the recognition of the Knights Templar, at the 1129 Council of Troyes.

1585 · Reformation

Muiris Mac Ionrachtaigh, anglicised as Maurice MacKenraghty (died 30 April 1585), was an Irish Roman Catholic priest who was put to death, officially for high treason, but in reality as part of the religious persecution of the Catholic Church in Ireland by Queen Elizabeth I and h…

1701–1757 · Modern · Benedictines

Maurus Xaverius Herbst or Florian Johann Friedrich Herbst (14 September 1701 – 4 April 1757) was a German Benedictine abbot. Herbst was born in Pleinfeld to Franz Herbst (died 1731) and Anna Maria Clara Herbst (née Gulden).

1000–1070 · Medieval · Benedictines

Maurus of Pécs or Mór (Hungarian: Mór pécsi püspök) was the first known prelate who was born in the Kingdom of Hungary. He was abbot of the Benedictine Abbey of Pannonhalma between around 1029 and 1036, and bishop of Pécs from year 1036 until his death around year 1075.

1887–1944 · Contemporary

Max Josef Metzger (3 February 1887 – 17 April 1944) was a Catholic priest and leading German pacifist. Due to his activities for peace between nations, Metzger was a thorn in the side of the National Socialists.

1125–1160 · Medieval · Benedictines

Mechtildis of Edelstetten, also known as Mechtildis of Diessen or Mechtildis of Andechs, was a Benedictine abbess and, according to legend, a renowned miracle worker.

975–1036 · Medieval

Meinwerk (c. 975 – 5 June 1036) was the Bishop of Paderborn from 1009 until his death. He was a member of the aristocratic Immedinger family and was granted his see on the understanding that his property would pass to the diocese on his death.

1880–1936 · Contemporary · Society of St. Teresa of Jesus

Mercè Prat i Prat, STJ (6 March 1880 - 24 July 1936) was a Spanish Catholic nun who was a member of the Societatis Sanctae Teresiae a Iesu. She assumed the religious name of Maria Mercè of the Sacred Heart.

1852–1890 · Modern

Michael Joseph McGivney (August 12, 1852 – August 14, 1890) was an American Catholic priest based in New Haven, Connecticut. He founded the Knights of Columbus at a local parish to serve as a mutual aid and insurance organization, particularly for immigrants and their families.