Died on 18th day

October 18, 31 Sejanus an ambitious soldier, friend and confidant of the Roman Emperor Tiberius. An equestrian by birth, Sejanus rose to power as prefect of the Roman imperial bodyguard, known as the Praetorian Guard, of which he was commander from AD 14 until his death in AD 31
September 18, 96 Domitian Roman emperor from 81 to 96. Domitian was the third and last emperor of the Flavian dynasty
October 18, 325 Emperor Ming of Jin an emperor of the Eastern Jin Dynasty. During his brief reign , he led the weakened Jin out of domination by the warlord Wang Dun, but at his early death, the empire was left to his young son Emperor Cheng, and the fragile balance of power that he created was soon broken, leading to the Su Jun Disturbance and weakening the Jin state even further
August 18, 353 Decentius a usurper of the Western Roman Empire against emperor Constantius American scholar Michael DiMaio speculates that Decentius possibly was the brother of Magnentius, who had revolted against Constantius on 18 January 350.
August 18, 440 Pope Sixtus III Pope from 31 July 432 to his death in 440.
August 18, 472 Ricimer a Romanized Germanic general who effectively ruled the remaining territory of the Western Roman Empire from 456 until his death in 472. Deriving his power from his position as magister militum of the Western Empire, Ricimer exercised political control through a series of puppet emperors
January 18, 474 Leo I the Thracian Byzantine Emperor from 457 to 474. A native of Dacia Aureliana near historic Thrace, he was known as Leo the Thracian
May 18, 526 Pope John I Pope from 13 August 523 to his death in 526. He was a native of Siena , near Chiusdino, in Italy. He is the first pope known to have visited Constantinople while in office
October 18, 544 Saint Wenna a Cornish saint , the dedicatee of several churches.
August 18, 673 Kim Yushin a general in 7th-century Silla. He led the unification of the Korean peninsula by Silla under the reign of King Muyeol of Silla and King Munmu of Silla. He is said to have been the great-grandchild of King Guhae of Geumgwan Gaya, the last ruler of the Geumgwan Gaya state. This would have given him a very high position in the Silla bone rank system, which governed the political and military status that a person could attain
July 18, 707 Emperor Monmu the 42nd emperor of Japan, according to the traditional order of succession.
October 18, 707 Pope John VII Pope from 1 March 705 to his death in 707. The successor of John VI, he was of Greek ancestry. He is one of the popes of the Byzantine captivity
July 18, 715 Muhammad bin Qasim an Umayyad general who conquered the Sindh and Multan regions along the Indus River for the Umayyad Caliphate. He was born and raised in the city of Taif. Qasim's conquest of Sindh and southern-most parts of Multan enabled further Islamic expansion into India
June 18, 741 Leo III the Isaurian Byzantine Emperor from 717 until his death in 741. He put an end to a period of instability, successfully defended the Empire against the invading Umayyads, and forbade the veneration of icons
December 18, 768 Winibald abbot of the Benedictine double monastery of Heidenheim am Hahnenkamm. Traditionally, he is called the brother of Saint Willibald and Saint Walpurga
April 18, 796 Æthelred I of Northumbria the king of Northumbria from 774 to 779 and again from 790 until he was murdered in 796. He was the son of Æthelwald Moll and Æthelthryth and possibly became king while still a child after Alhred was deposed
February 18, 814 Angilbert a Frank who served Charlemagne as a diplomat, abbot, poet and semi-son-in-law. He was of noble Frankish parentage, and educated at the palace school in Aquae Grani under Alcuin. He is venerated as a saint, on the day of his death—18 February
December 18, 821 Theodulf of Orléans a writer, poet and the Bishop of Orléans during the reign of Charlemagne and Louis the Pious. He was a key member of the Carolingian Renaissance and an important figure during the many reforms of the church under Charlemagne, as well as almost certainly the author of the Libri Carolini, "much the fullest statement of the Western attitude to representational art that has been left to us by the Middle Ages". He is mainly remembered for this and the survival of the private oratory or chapel made for his villa at Germigny-des-Prés, with a mosaic probably from about 806
August 18, 849 Walafrid Strabo a Frankish monk and theological writer.
April 18, 850 Perfectus one of the Martyrs of Córdoba whose martyrdom was recorded by Saint Eulogius in the Memoriale sanctorum.
September 18, 887 Pietro I Candiano briefly the sixteenth Doge of Venice in 887.
May 18, 893 Stephen I of Constantinople the Ecumenical Patriarch of Constantinople from 886 to 893.
February 18, 901 Thābit ibn Qurra an Arabic Sabian mathematician, physician, astronomer, and translator of the Islamic Golden Age who lived in Baghdad in the second half of the ninth century during the time of Abbasid Caliphate.
July 18, 912 Zhu Wen a Jiedushi at the end of the Chinese dynasty Tang Dynasty, who previously served as a general under the rebel Huang Chao's state of Qi and overthrew Tang in 907, established the Later Liang as its emperor, and ushered in the era of the Five Dynasties and Ten Kingdoms.
November 18, 942 Odo of Cluny the second abbot of Cluny. He enacted various reforms in the Cluniac system of France and Italy. He is venerated as a Saint by the Catholic Church and his feast day is 18 November
March 18, 978 Edward the Martyr King of the English from 975 until he was murdered in 978. Edward was the eldest son of King Edgar but was not his father's acknowledged heir. On Edgar's death, the leadership of England was contested, with some supporting Edward's claim to be king and others supporting his much younger half-brother Æthelred the Unready, recognized as a legitimate son of Edgar. Edward was chosen as king and was crowned by his main clerical supporters, the archbishops Dunstan and Oswald of Worcester
May 18, 978 Frederick I Duke of Upper Lorraine the count of Bar and duke of Upper Lorraine. He was a son of Wigeric, count of Bidgau, also count palatine of Lorraine, and Cunigunda, and thus a sixth generation descendant of Charlemagne
September 18, 993 Arnulf Count of Holland also known as Aernout or Arnold succeeded his father in 988 as Count in Frisia. He was born in 951 in Ghent and because of this he is also known as Arnulf of Ghent. Arnulf was the son of Dirk II, Count of Holland and Hildegard, thought to be a daughter of Arnulf of Flanders
February 18, 999 Pope Gregory V Pope from 3 May 996 to his death in 999.
October 18, 1012 Coloman of Stockerau a saint of the Catholic Church.
September 18, 1017 Henry of Schweinfurt the Margrave of the Nordgau from 994 until 1004. He was called the "glory of eastern Franconia" by his own cousin, the chronicler Thietmar of Merseburg
October 18, 1035 Sancho III of Navarre Garcés , called the Great , succeeded as a minor to the Kingdom of Navarre in 1004, and through conquest and political maneuvering increased his power, until at the time of his death in 1035 he controlled the majority of Christian Iberia, bearing the title of rex Hispaniarum. Having gone further than any of his predecessors in uniting the divided kingdoms of Iberia, his life's work was undone when he divided his domains shortly before his death to provide for each of his sons. The Kingdom of Navarre existed for almost six centuries after his death, but was never as powerful again
July 18, 1038 Gunhilda of Denmark the first spouse of Henry III, Holy Roman Emperor.
May 18, 1065 Frederick Duke of Lower Lorraine the count of Malmedy from 1035 and Duke of Lower Lorraine from 1046. He was a younger son of Frederick, Lord of Gleiberg, and Ermentrude, and grandson of Siegfried, Count of Luxembourg, hence his name
December 18, 1075 Edith of Wessex a Queen of England. Her husband was Edward the Confessor, whom she married on 23 January 1045. Unlike most English queens in the 10th and 11th centuries, she was crowned, The principal source on her life is a work she herself commissioned, the Vita Ædwardi Regis or the Life of King Edward who rests at Westminster, which is inevitably biased
April 18, 1076 Beatrice of Bar She was the daughter of Frederick II, Duke of Upper Lorraine, who was also count of Bar, and Matilda of Swabia. She was married firstly to Boniface III of Tuscany and secondly to Godfrey of Lotharingia. Through her marriage to Boniface, she was marchioness of Tuscany from c.1037/8 to her death in 1076
March 18, 1086 Anselm of Lucca an Italian bishop, a prominent figure in the Investiture Controversy and in the fighting in Central Italy between the forces of Countess Matilda of Tuscany, the papal champion, and those of Henry IV, Holy Roman Emperor.
May 18, 1090 Berthold I Duke of Swabia the Duke of Swabia from 1079 until his death. He was the only son of Rudolf of Rheinfelden, the German anti-king who opposed the Emperor Henry IV
August 18, 1095 Olaf I of Denmark king of Denmark from 1086 to 1095, following the death of his brother Canute IV the Holy. He was a son of king Sweyn II Estridsson, and the third of Sweyn's sons to rule. He married Ingegard, the daughter of Harald Hardråde, but did not have any children. He was succeeded by his brother Eric I Evergood
July 18, 1100 Godfrey of Bouillon a medieval Frankish knight who was one of the leaders of the First Crusade from 1096 until his death. He was the Lord of Bouillon, from which he took his byname, from 1076 and the Duke of Lower Lorraine from 1087. After the successful siege of Jerusalem in 1099, Godfrey became the first ruler of the Kingdom of Jerusalem, although he refused the title "King"; as he believed that the true King of Jerusalem was Christ
October 18, 1101 Hugh I Count of Vermandois a younger son of Henry I of France and Anne of Kiev and younger brother of Philip He was in effect Count of Vermandois, but an ineffectual leader and soldier, great only in his boasting. Indeed, Steven Runciman is certain that his nickname Magnus , applied to him by William of Tyre, is a copyist's error, and should be Minus , referring to Hugh as younger brother of the King of France
March 18, 1108 Abe no Munetō a samurai of the Abe clan during the Heian period of Japan. He was the son of Abe no Yoritoki, the head of the Abe clan of Emishi who were allowed to rule the six Emishi districts in the Kitakami Basin from Morioka to Hiraizumi in what is now Iwate Prefecture. Abe no Yoritoki was the Chinjufu Shogun. In the Zenkunen War, he fought, together with his brother Sadato, alongside his father against the Minamoto
January 18, 1121 William of Champeaux a French philosopher and theologian.
January 18, 1122 Christina Ingesdotter of Sweden a Swedish princess and a princess consort of Veliky Novgorod, Rostov and Belgorod, by marriage to Grand Prince Mstislav I of Kiev.
July 18, 1123 Bruno (bishop of Segni) an Italian Catholic saint.
December 18, 1133 Hildebert a French writer and ecclesiastic. His name is also spelled Hydalbert, Gildebert, or Aldebert
July 18, 1137 Eric II of Denmark king of Denmark between 1134 and 1137. Eric was an illegitimate son of Eric I of Denmark, who ruled Denmark from 1095 to 1103. Eric the Memorable rebelled against his uncle Niels of Denmark, and was declared king in 1134. He punished his adversaries severely, and rewarded his supporters handsomely. He was killed by a subject in 1137, and was promptly succeeded by his nephew Eric III of Denmark
February 18, 1139 Yaropolk II of Kiev Vladimirovich , Prince of Pereyaslav , Velikiy Kniaz of Kiev , son of Vladimir II Monomakh and Gytha of Wessex. He fought in several campaigns against the Polovtsy , once in 1103 and again in 1116
October 18, 1141 Leopold Duke of Bavaria Margrave of Austria as Leopold IV from 1136, and Duke of Bavaria as Leopold I from 1139 until his death in 1141.
April 18, 1143 Gertrude of Süpplingenburg a Margravine consort of Austria and Tuscany and a Duchess consort of Saxony and Bavaria. She was a member of the Süpplingenburg dynasty