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1300–1385 · Medieval

Saint Dionysius I (Russian: Дионисий, romanized: Dionisy; secular name: David; c. 1300 – 15 October 1385) was the metropolitan of the Russian Orthodox Church from 1384 to 1385.

150–171 · Early Church

Dionysius of Corinth, (Greek: Διονύσιος ό Κορίνθιος) also known as Saint Dionysius, was the bishop of Corinth circa AD 171. His feast day is commemorated on April 8. The date is established by the fact that he wrote to Pope Soter.

200–193 · Early Church

Dionysius was Bishop of Vienne. He was among the ten missionaries sent by Pope St. Sixtus I with St. Peregrinus to Gaul. Dionysius later succeeded St. Justus as Bishop of Vienne, in Dauphiné, France.

100–100 · Early Church

Dionysius the Areopagite was an Athenian judge at the Areopagus Court in Athens, who lived in the first century. A convert to Christianity, he is venerated as a saint by multiple denominations.

250–305 · Early Church

Dioscorus I (Greek: Διόσκορος Α΄ ὁ Ἀλεξανδρείας), also known as Dioscorus the Great, was the pope of Alexandria and patriarch of the See of St. Mark who was deposed by the Council of Chalcedon in 451. He was recognized as patriarch by the Coptic Church until his death.

1862–1915 · Contemporary

Diran Kelekian (Dikran Kelegian, Armenian: Տիրան Քէլէկեան, 1862–1915) was an Ottoman Armenian journalist and professor at the Darülfünûn-u Şahâne (now the University of Istanbul). He was editor of two newspapers, Cihan (since 1883) and Sabah (since 1908).

619–700 · Medieval

Saint Disibod (619–c. 674) was an Irish monk and hermit, first mentioned in a martyrologium by Hrabanus Maurus (9th century). Hildegard of Bingen around 1170 composed a Vita of Saint Disibod. He is commemorated on 8 September.

600–658 · Medieval

Diuma (or Dwyna or Duma) was the first Bishop of Mercia in the Anglo-Saxon Kingdom of Mercia, during the Early Middle Ages. All that is known of Diuma's life is contained in a short account in Bede's Ecclesiastical History of the English People.

1201 · Medieval

Dmitar Nemanjić (Serbian Cyrillic: Дмитар Немањић, d. after 1286), also known as Dimitrije Nemanjić (Serbian Cyrillic: Димитрије Немањић), was a Serbian prince, from the Nemanjić dynasty.

1350–1389 · Medieval

Dmitry Ivanovich Donskoy (Russian: Дми́трий Ива́нович Донско́й; 12 October 1350 – 19 May 1389) was Prince of Moscow from 1359 and Grand Prince of Vladimir from 1363 until his death. He was the heir of Ivan II.

1582–1591 · Reformation

Dmitry Ivanovich (Russian: Дмитрий Иванович; 29 October [O.S. 19 October] 1582 – 15 May 1591) was the youngest son of Russian tsar Ivan the Terrible.

1275–1296 · Medieval

Sant Dnyaneshwar (Marathi pronunciation: [d̪ɲaːn̪eʃʋəɾ]), (Devanagari : सन्त ज्ञानेश्वर), pronunciation also referred to as Jñāneśvara, Jñānadeva, Dnyandev or Mauli or Dnyandev Vitthal Kulkarni (1275–1296 (living samadhi)), was a 13th-century Indian Marathi saint, poet, philosoph…

1487–1554 · Reformation

Milica Despina (Serbian Cyrillic: Милица Деспина; Romanian: Milița Despina; c. 1485 – 30 January 1554) was the Princess consort of Wallachia by marriage to Neagoe Basarab (r. 1512–1521).

1661–1729 · Modern

Doamna Marica Brâncoveanu (circa 1661 – 1729) was a princess consort of Wallachia by marriage to Constantin Brancoveanu (r. 1688–1714). Her father was Neagu, son of the Wallachian prince Antonie of Popești (r.1669-72) and Necșuța. She married Constantin Brancoveanu in 1674.

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Saint Dode (born before 509) was an Abbess of Saint Pierre de Reims and a French Saint whose Feast Day is 24 April. She is reputed to be the daughter of Chloderic, King of the Ripuarian Franks and the sister of Munderic, making her a princess of the Ripuarian Franks.

470 · Early Church

Saint Dogmael (or Docmael, Dogfael, Dogmeel, Dogwel, Toel) was a 6th-century Welsh monk and preacher who is considered a saint. His feast day is 14 June.

500 · Medieval

Dogfan, also known as Doewan, was a saint and martyr who lived in 5th century Wales. He is venerated in the Anglican Church, Eastern Orthodox Church, True Orthodox Church, and Roman Catholic Church, on 13 July. He is the patron saint of Llanrhaeadr-ym-Mochnant in Wales.

1770–1828 · Modern

Domenico Lentini (20 November 1770 – 25 February 1828) was an Italian Roman Catholic priest. He was ordained in 1794 and was a life-long parish priest in his hometown of Potenza where he promoted Eucharistic devotion and worked alongside the poor of the area.

1802–1854 · Modern · Franciscans

Domenico Mazzarella (5 September 1802 – 4 July 1854) was an Italian Roman Catholic priest. He was also a professed member of the Franciscan Friars Minor of the Alcantarines and assumed the name of "Modestino of Jesus and Mary".

1450–1521 · Reformation · Dominican Order

Domenico Spadafora (1450 – 21 December 1521) was an Italian Roman Catholic priest and a professed member of the Order of Preachers. Spadafora was a noted evangelist and attracted countless to the Dominican fold while also converting the hearts of others who led dissolute lives.

363 · Early Church

Saint Dometius (Domitius) the Persian (died 363) is venerated as a Christian martyr and saint. According to tradition, he was martyred by lapidation during the reign of Julian the Apostate with two companions. He was killed at Nisibis in Mesopotamia.

1589–1633 · Reformation · Dominican Order

Domingo Ibáñez de Erquicia (c. 1589 – August 14, 1633) was a Spanish Dominican priest and missionary. After teaching at the Colegio de Santo Tomas in Manila, he went to Japan in 1623, where he ministered incognito to the Catholic community for about ten years.

1901–1927 · Contemporary · Trinitarian Order

Domingo Iturrate Zubero (11 May 1901 – 7 April 1927), also known by his religious name Domingo of the Blessed Sacrament, was a Spanish Roman Catholic priest and a professed member of the Trinitarian Order.

1243–1250 · Medieval

Dominguito del Val (c. 1243 – c. 1250) was a legendary child in medieval Spain, allegedly a choirboy ritually murdered by Jews in Zaragoza (Saragossa).

1792–1849 · Modern · Passionists

Dominic Barberi, C.P. (22 June 1792 – 27 August 1849) was an Italian theologian and Passionist priest who was prominent in spreading Catholicism in England. He contributed to the conversion of John Henry Newman. In 1963, he was beatified by Pope Paul VI.

1566–1602 · Reformation · Society of Jesus

Dominic Collins, SJ (Irish: Doiminic Ó Coileáin; 1566 – 31 October 1602) was an Irish Jesuit lay brother, an ex-soldier, who died for his Catholic faith. He was beatified by Pope John Paul II, along with 16 other Irish Catholic Martyrs, on 27 September 1993.

995–1060 · Medieval · Benedictines

Dominic Loricatus, O.S.B. Cam. (Italian: San Domenico Loricato; 995 - 1060), was an Italian monk, born in the village of Luceolis near Cantiano (then in Umbria, now in the Marche).

1812–1862 · Modern

Vietnamese Martyrs (Vietnamese: Các Thánh Tử đạo Việt Nam), also known as the Martyrs of Tonkin and Cochinchina, collectively Martyrs of Annam or formerly Martyrs of Indochina, are saints of the Catholic Church who died between 1745 and 1862, and were canonized by Pope John Paul…

1842–1857 · Modern · Salesians of Don Bosco

Dominic Savio (Italian: Domenico Savio; 2 April 1842 – 9 March 1857) was a 19th-century Italian teenager who was a student of John Bosco and became a Catholic saint. He was studying to be a priest when he became ill and died at the age of 14, possibly from pleurisy.

1019–1109 · Medieval

Dominic de la Calzada (or Dominic of the Causeway) (Spanish: Santo Domingo de la Calzada) (1019 – 12 May 1109) was a saint from a cottage in Burgos very close to La Rioja. Born Domingo García in Viloria de Rioja, he was the son of a peasant named Ximeno García.

1384–1461 · Medieval · Carthusian Order

Dominic of Prussia (German: Dominikus von Preußen; Latin: Dominicus Prutenus; 1382–1461) was a Carthusian monk and ascetical writer. He is credited with a popular early form of the Rosary which focused on meditation. Born in Danzig (contemporarily Gdańsk), Prussia.

1000–1073 · Medieval · Benedictines

Dominic of Silos OSB (Spanish: Santo Domingo de Silos) (1000 – 20 December 1073) was a Spanish monk, to whom the Abbey of Santo Domingo de Silos, where he served as the abbot, is dedicated. He is revered as a saint in the Catholic Church. His feast day is 20 December.

600–545 · Medieval

Domenico of Arras was a Pre-congregational saint and Bishop of Arras, France from 540AD to about 545AD. His feast day is 6th Feb.

1886–1942 · Contemporary

Dominik Jędrzejewski (4 August 1886 – 29 August 1942) was a Polish Roman Catholic priest killed at the Dachau concentration camp during World War II. He was beatified in Warsaw on 13 June 1999. Jędrzejewski was born in Kowal, Poland, and was the youngest of six children.

1886–1959 · Contemporary · Congregation of the Most Holy Redeemer

Dominik Trčka (6 July 1886 – 23 March 1959), also known by his religious name Metod, was a Czech priest of the Congregation of the Most Holy Redeemer (Redemptorists).

600–560 · Medieval

Domitian of Huy (Latin: Domitianus; also, of Maestricht) was a Gaulish bishop of the sixth century who is noted for both his generosity and writings against heresy. He is venerated as a saint. Domitian was chosen bishop of Tongeren, but later moved his see to Maastricht.

564–602 · Medieval

Domitian (Latin: Domitianus, Greek: Δομιτιανός; c. 550 – 602) was the nephew of the Roman emperor Maurice and the archbishop of Melitene in Roman Armenia from around 580 until his death.

800–900 · Medieval

Domitian of Carantania or Domitian of Carinthia (German: Domitian von Kärnten, Slovene: Domicijan Koroški; died c. 802), also known as Domislav and Tuitianus, was a Slavic nobleman in the principality of Carantania (present-day Carinthia, Austria) during the reign of Charlemagne.…

650 · Medieval · Benedictines

Domne Eafe , also Domneva, Domne Éue, Æbbe, Ebba, was, according to the Kentish royal legend, a granddaughter of King Eadbald of Kent and the foundress of the double monastery of Minster in Thanet Priory at Minster-in-Thanet during the reign of her cousin King Ecgberht of Kent.

384 · Early Church

Saint Domninus of Grenoble (French: Domnin; d. 386) was the first recorded bishop of Grenoble. He is venerated as a saint by the Roman Catholic Church and by the Orthodox Church; his feast day is celebrated on 2 November in the Roman Catholic Church and on 5 November in the Ortho…

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Saint Domnina of Syria (Greek: Δομνίνα Συρίας) also known as Domnina the Younger, was a 5th-century ascetic. Her name is mentioned in the Byzantine Synaxarium. and according to Theodoret, bishop of Cyrrhus, Domnina was born to a rich Syrian family.

300–269 · Early Church

Saint Domnina is venerated as a martyr by the Catholic Church. According to tradition, she was martyred at Terni (known as Interamna Nahars in antiquity) along with ten consecrated virgins in the mid-3rd century, at the same time that Saint Valentine, bishop of Terni was killed.

201–304 · Early Church

Saint Domninus of Fidenza (Italian: San Donnino di Fidenza) is an Italian Catholic saint. According to tradition, he died in 304 AD and was a native of Parma. The cathedral in Fidenza (a town once called Borgo San Donnino) is dedicated to him.

500 · Medieval

Saint Domninus of Vienne (French: Domnin, Domnus, Donnin; d. 536) was a bishop of Vienne in France, venerated as a saint. Domninus was born in the Dauphiné. He succeeded Julian as bishop in 533.

299 · Early Church

Saint Domnius (also known as Saint Dujam or Saint Duje, Saint Domnio, Saint Doimus, or Saint Domninus) was a Bishop of Salona (today's Solin) around the year 300, and is venerated as the patron of the nearby city of Split in modern Croatia.

600 · Medieval

St Dona's Church, Llanddona ) is a small 19th-century parish church in the village of Llanddona, in Anglesey, north Wales. The first church on this site was built in 610. The present building on the site dates from 1873, and was designed by the rector at the time.

650–716 · Medieval

St. Donald of Sheridan, also known as Donivald or Domhnall, was an eighth-century Scottish saint who lived at Ogilvy, in the former Forfarshire.

594–660 · Medieval

Donatus (d. after 658) was a bishop of Besançon, founder of the monastery Palatium (later Saint-Paul) in Besançon and author of a rule for nuns. He is venerated as a saint since the 11th century; his feast day is August 7.

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Donatien of Reims (also known as Donatien or Donat) was a 4th-century French saint and the 8th Bishop of Reims. He died in AD 389, and in AD 863 the count of Flanders Baldwin I transferred his relics to the Church Saint-Agricol de Reims at Bruges, where his cult is still active.…

400–390 · Early Church

Donatien of Reims (also known as Donatien or Donat) was a 4th-century French saint and the 8th Bishop of Reims. He died in AD 389, and in AD 863 the count of Flanders Baldwin I transferred his relics to the Church Saint-Agricol de Reims at Bruges, where his cult is still active.…