Died on 21st day

February 21, 4 Gaius Caesar the oldest son of Marcus Vipsanius Agrippa and Julia the Elder. He was born between 14 August and 13 September 20 BC or according to other sources in 23 September 20 Originally named Gaius Vipsanius Agrippa, when he was adopted by his maternal grandfather the Roman emperor, Augustus, of the Julian gens, his name was accordingly changed to Gaius Julius Caesar
September 21, 19 Virgil an ancient Roman poet of the Augustan period. He is known for three major works of Latin literature, the Eclogues , the Georgics, and the epic Aeneid. A number of minor poems, collected in the Appendix Vergiliana, are sometimes attributed to him
December 21, 72 Thomas the Apostle one of the Twelve Apostles of Jesus Christ, according to the New Testament. He is best known from the account in the Gospel of Saint John, where he questioned Jesus' resurrection when first told of it, followed by his confession of faith as both "My Lord and my God" on seeing Jesus' wounded body
April 21, 303 Alexandra of Rome Christian saint, known from "Martyrdom of Saint George" as Emperor Diocletian's wife. She is also sometimes called Priscilla or Prisca
January 21, 420 Yazdegerd I the fourteenth Sasanian king of Persia and ruled from 399 to 420. He was the son of Shapur III. He succeeded to the Sasanian throne on the assassination of his brother Bahram IV in 399 and ruled for twenty-one years till his death in 420
September 21, 454 Flavius Aetius a Roman general of the closing period of the Western Roman Empire. He was an able military commander and the most influential man in the Western Roman Empire for two decades. He managed policy in regard to the attacks of barbarian federates settled throughout the Western Roman Empire. Notably, he mustered a large Roman and allied army to stop the Huns in the Battle of the Catalaunian Plains, ending the devastating Hunnic invasion of Attila in 451
January 21, 496 Epiphanius of Pavia Bishop of Pavia from 466 until his death in 496. Epiphanius additionally held the offices of lector, subdeacon and deacon
November 21, 615 Columbanus an Irish missionary notable for founding a number of monasteries on the European continent from around 590 in the Frankish and Lombard kingdoms, most notably Luxeuil Abbey in present-day France and Bobbio Abbey in present-day Italy. He is remembered as an exemplar of Irish missionary activity in early medieval Europe
August 21, 672 Emperor Kōbun the 39th emperor of Japan, according to the traditional order of succession.
September 21, 687 Pope Conon Pope from 21 October 686 to his death in 687. He had been put forward as a compromise candidate, there being a conflict between the two factions resident in Rome—military and clerical. On his death, Conon was buried in the Patriarchal Basilica of Peter
August 21, 784 Alberic of Utrecht today the Netherlands.
May 21, 822 Al-Hakam I Umayyad Emir of Cordoba from 796 until 822 in the Al-Andalus.
June 21, 870 Al-Muhtadi the Abbasid Caliph in Baghdad from 869 to 870, during the "Anarchy at Samarra".
December 21, 882 Hincmar one of the most remarkable figures in the ecclesiastical history of the Carolingian period. He belonged to a noble family of northern Francia
September 21, 895 Minamoto no Tōru a Japanese poet and statesman. He was born the grandson of Emperor Saga and a member of the Saga Genji clan. He is sometimes mentioned as the model for Hikaru Genji in important Japanese literary classic The Tale of Genji
January 21, 917 Erchanger Duke of Swabia the duke of Swabia from September 915 to his death. He was the son of Berthold I, count palatine of Swabia, who is sometimes called Erchanger as well, in which case the duke is Erchanger His mother was Gisela, daughter of Louis the German and his family is known as the Ahalolfinger
April 21, 941 Bajkam a Turkish military commander and official of the Abbasid Caliphate. A former ghulam of the Ziyarid dynasty, Bajkam entered Abbasid service following the assassination of the Ziyarid ruler Mardavij in 935. During his five-year tenure at the Caliphate's court at Baghdad, he was granted the title of amir al-umara, consolidating his dominance over the Caliphs al-Radi and al-Muttaqi and giving him absolute power over their domains. Bajkam was challenged throughout his rule by various opponents, including his predecessor as amir al-umara, Ibn Ra'iq, the Basra-based Baridis, and the Buyids of Iran, but he succeeded in retaining control until his death. He was murdered by a party of Kurds during a hunting excursion in 941, shortly after the accession of al-Muttaqi as Caliph. Bajkam was known both for his firm rule and for his patronage of Baghdad intellectuals, who respected and in some cases befriended him. His death led to a void in central power, resulting in a brief period of instability and fighting in Baghdad
May 21, 987 Louis V of France the King of Western Francia from 986 until his premature death. He died childless and was the last monarch in the Carolingian line
July 21, 987 Geoffrey I Count of Anjou count of Anjou from 960 to 987.
December 21, 1001 Hugh Margrave of Tuscany the Margrave of Tuscany from 969 until his death, and the Duke of Spoleto and Margrave of Camerino from 989 to 996. He restored the state apparatus in Tuscany after decades of neglect by margraves whose main interests lay elsewhere. Hugh supported the new Ottonian dynasty , and was praised for his justice by the contemporary theologian Peter Damian in his De principis officio
November 21, 1011 Emperor Reizei the 63rd emperor of Japan, according to the traditional order of succession.
September 21, 1026 Otto-William Count of Burgundy Count of Macon, Count of Nevers, and Count of Burgundy.
March 21, 1034 Ezzo Count Palatine of Lotharingia undoubtedly one of the most important figures of the Rhenish History of his time.
June 21, 1040 Fulk III Count of Anjou the first great builder of castles. He lived from 970 to 1040, constructed an estimated 100 castles and abbeys across the Loire Valley in today’s France, fought successive wars with neighbors in Brittany, Blois, Poitou and Aquitaine counties and traveled four times to Jerusalem on pilgrimage during the course of his life. He had two wives and three children
January 21, 1059 Michael I Cerularius the Ecumenical Patriarch of Constantinople from 1043 to 1059.
March 21, 1063 Richeza of Lotharingia a German noblewoman by birth, a member of the Ezzonen dynasty. She married Mieszko II Lambert, King of Poland, becoming Queen consort of Poland. She returned to Germany following the deposition of her husband in 1031, later becoming a nun, and today is reverenced as Blessed Richeza of Lotharingia
April 21, 1073 Pope Alexander II Pope from 30 September 1061 to his death in 1073.
March 21, 1076 Robert I Duke of Burgundy duke of Burgundy from 1032 to his death. Robert was son of King Robert II of France and brother of Henry I of France
May 21, 1086 Wang Anshi a Chinese economist, statesman, chancellor and poet of the Song Dynasty who attempted controversial, major socioeconomic reforms. These reforms constituted the core concepts and motives of the Reformists, while their nemesis, Chancellor Sima Guang, led the Conservative faction against them
June 21, 1093 Sophie Countess of Bar a daughter of Frederick II, Duke of Upper Lorraine and Matilda of Swabia. After her father died, she and her sister Beatrice went to live with their mother's sister, Empress Gisela
July 21, 1105 Frederick I Duke of Swabia Duke of Swabia from 1079 to his death, the first ruler from the House of Hohenstaufen.
April 21, 1109 Anselm of Canterbury a Benedictine monk, philosopher, and prelate of the Church, who held the office of Archbishop of Canterbury from 1093 to 1109. Called the founder of scholasticism, he has been a major influence in Western theology and is famous as the originator of the ontological argument for the existence of God and the satisfaction theory of atonement
September 21, 1109 Svatopluk Duke of Bohemia Duke of Bohemia from 1107 to his assassination. His rule was overshadowed by the fierce conflict around the Bohemian throne in the 12th century
January 21, 1118 Pope Paschal II Pope from 13 August 1099 to his death in 1118.
October 21, 1125 Cosmas of Prague a priest, writer and historian born in a noble family in Bohemia. Between 1075 and 1081, he studied in Liège. After his return to Bohemia, he became a priest and married Božetěcha, with whom he probably had a son. In 1086, Cosmas was appointed prebendary of Prague, a prestigious position. As prebendary he also travelled through Europe on official matters
August 21, 1131 Baldwin II of Jerusalem the second count of Edessa from 1100 to 1118, and the third king of Jerusalem from 1118 until his death.
April 21, 1136 Stephen Count of Tréguier a Breton noble and a younger son of Odo, Count of Penthièvre and Agnes of Cornouaille, sister of Hoel II, Duke of Brittany. In 1093, he succeeded to the title of Count of Tréguier; in 1098, he succeeded his brother Alain as Lord of Richmond in Yorkshire, England
November 21, 1136 William de Corbeil a medieval Archbishop of Canterbury. Very little is known of William's early life or his family, except that he was born at Corbeil in the outskirts of Paris and that he had two brothers. Educated as a theologian, he taught briefly before serving the bishops of Durham and London as a clerk and subsequently becoming a canon, a priest who lived a communal life. William was elected to the see of Canterbury as a compromise candidate in 1123, the first canon to become an English archbishop. He succeeded Ralph d'Escures, who had employed him as a chaplain
April 21, 1142 Peter Abelard a medieval French scholastic philosopher, theologian and preeminent logician. He was also a composer. His affair with and love for Héloïse d'Argenteuil has become legendary. The Chambers Biographical Dictionary describes him as "the keenest thinker and boldest theologian of the 12th Century"
August 21, 1148 William II Count of Nevers a crusader in the Crusade of 1101.
November 21, 1150 García Ramírez of Navarre Lord of Monzón and Logroño, and, from 1134, King of Navarre. He "restored" the independence of the Navarrese crown after 58 years of union with the Kingdom of Aragon
August 21, 1157 Alfonso VII of León and Castile born Alfonso Raimúndez, called the Emperor , became the King of Galicia in 1111 and King of León and Castile in 1126. Alfonso first used the title Emperor of All Spain, alongside his mother Urraca, once his mother vested him with the direct rule of Toledo in 1116. Alfonso later held another investiture in 1135 in a grand ceremony reasserting his claims to the Imperial title. He was the son of Urraca of León and Raymond of Burgundy, the first of the House of Burgundy to rule in the Iberian peninsula
November 21, 1161 William III Count of Nevers Count of Nevers, Auxerre and Tonnerre. He was born in Auxerre
June 21, 1171 Walter de Luci the brother of Richard de Luci, who was Chief Justiciar of England.
February 21, 1184 Minamoto no Yoshinaka a general of the late Heian Period of Japanese history. A member of the Minamoto samurai clan, Minamoto no Yoritomo was his cousin and rival during the Genpei War between the Minamoto and the Taira clans
August 21, 1190 Godfrey III Count of Louvain count of Louvain , landgrave of Brabant, margrave of Antwerp, and duke of Lower Lorraine from 1142 to his death.
March 21, 1201 Absalon a Danish archbishop and statesman, who was the Bishop of Roskilde from 1158 to 1192 and Archbishop of Lund from 1178 until his death. He was the foremost politician and churchfather of Denmark in the second half of the 12th century, and was the closest advisor of King Valdemar I of Denmark. He was a key figure in the Danish policies of territorial expansion in the Baltic Sea, Europeanization in close relationship with the Holy See, and reform in the relation between the Church and the public. He combined the ideals of Gregorian Reform ideals with loyal support of a strong monarchical power
June 21, 1208 Philip of Swabia a prince of the House of Hohenstaufen and King of Germany from 1198 to 1208. In the long-time struggle for the German throne upon the death of Emperor Henry VI between the Hohenstaufen and Welf dynasties, he was the first German king to be assassinated
April 21, 1213 Maria of Montpellier by birth heiress and later Sovereign Lady of Montpellier and by her three marriages Viscountess of Marseille, Countess of Comminges and Queen of Aragon.
June 21, 1213 Eleanor Countess of Vermandois a daughter of Ralph I, Count of Vermandois and his second wife Petronilla of Aquitaine. Eleanor was Countess of Vermandois in her own right and was Countess of Ostervant, Nevers, Auxerre, Boulogne and Beaumont by her various marriages