Hovhannes-Smbat III, King of the Armenian kingdom of Ani, is attacked by his younger brother Ashot IV, and loses much power to him, becoming concurrent king of outlying territories.
The Chinese capital city of Kaifeng has some half a million residents by this year. Including all those present in the nine designated suburbs, the population is over a million people.
Spring – Emperor Henry II divides his army into three columns and descends through Rome onto Capua after the Lombard states of Southern Italy had switched their allegiance to the Byzantinians in the wake of the battle of Cannae four years earlier. The bulk of the expeditionary force (20,000 men) led by Henry, makes its way down the Adriatic coast.
Pilgrim, archbishop of Cologne, marches with his army down the Tyrrhenian coast to lay siege to Capua. The citizens open the gates and surrender the city to the imperial army.[6]
Pilgrim besieges the city of Salerno for forty days. Prince Guaimar III offers to give hostages – Pilgrim accepts the prince's son and co-prince Guaimar IV, and lifts the siege.[7]
Summer – Outbreak of the plague among the German troops forces Henry II to abandon his campaign in Italy. He reimposes his suzerainty on the Lombard principalities.
The 14-year-old Al-Mu'izz ibn Badis, with support of the Zirid nobles, takes over the government and (as a minor) ascends to the throne in Ifriqiya (modern Tunisia).
February 12 – (18 Dhu-I-qa'da 413 AH) In Spain, Al-Ma'mun al-Qāsim ibn Ḥammud returns to Cordoba to become the new Emir, after the Emir Yaḥya ibn ʿAli ibn Ḥammud al-Muʿtali bi-llāh leaves the city and moves to Malaga. Al-Qasim reigns for 10 months before being forced out by Abd al-Rahman V.[13]
April 10 – Al-Hasan ibn Muhammad ibn Thu'ban becomes the new Emir of Halab (in what is now northern Syria) after Safiyy al-Dawla is dismissed by the Caliph al-Hakim.[17]
June 15 – (17th day before the kalends of July) The body of the late Ælfheah of Canterbury, the former Archbishop of Canterbury who will later be canonized as a Roman Catholic saint and a martyr of the church, is reburied at Canterbury Cathedral on orders of England's King Canute, after being moved from St. Paul's Cathedral in London on June 12 (the 3rd day before the ides of June). King Canute, whose Danish troops had murdered Archbishop Ælfheah on April 19, 1012, during Canute's invasion of England, has ordered the reburial as an atonement for Ælfheah's death.[19][20]
April/May (Jian 3, 4th month) – An epidemic in Kyoto (Japan) is so severe that there are corpses in the streets;[citation needed] disease spreads throughout the country.
60th birthday and longevity ceremony of Japanese matriarch Minamoto no Rinshi, wife of Fujiwara no Michinaga.
February 17 – According to the cartulary-chronicle of the Bèze Abbey (officially the Abbaye Saint-Pierre et Saint-Paul de Bèze) in the Burgundy region of France, the brothers Girard and Lambert repent of their seizure of the village of Viévigne and restore the property to the Abbey "for the good of their souls".[22]
March 9 – In Bamberg in Germany, the Holy Roman Emperor issues an order to regulate the ongoing dispute between the ministries of Fulda and Hersfeld[23]
March 23 (9 Muharram 415 AH) – In the first example of the reversal of the policy of religious tolerance created by the late Fatimid Caliph al-Hakim, Egyptian Christian Abu Zakariyya is arrested on charges of apostasy. Zakariyya, raised as a Christian, had converted to Islam, but then renounced Islam and converted back to Christianity, with immunity granted by al-Hakim. Zakariyya, apparently singled out for punishment is executed on October 14 (7 Shaban 415 CE).[24]
March – Massud ibn Tahir al-Wazzan, the vizier of the Fatimid Caliphate of Egypt since 1019, is dismissed by the Caliph al-Zahir li-I'zaz Din Allah, and replaced by al-Rudhbari.[25]
April 19 – Romano de Tusculana, Count of Tusculum and the brother of the late Pope Benedict, arrives in Rome to become the 144th pope of the Roman Catholic Church, and takes the name Pope John XIX.
January 21 – Chifuru, daughter of powerful Japanese court official Fujiwara no Sanesuke (rival of Fujiwara no Michinaga) has her mogi ceremony. Sanesuke wants to make his daughter an imperial consort which causes the dislike of Empress Ishi (daughter of Michinaga) – eventually Kampaku (Regent) Fujiwara no Yorimichi prevents it.
Spring – King Conrad II, "the Elder", assembles an army of thousands of armored knights for an expedition into Italy. He besieges Pavia and marches to Milan, where he is crowned with the Iron Crown by Archbishop Aribert as king of the Lombards. Duke William V ("the Great") of Aquitaine, who is already en route for Italy, decides to renounce his claim to the Lombard throne and turns back.[27]
April – Conrad II punishes the citizens of Pavia with starvation, with the help of Milanese troops, for burning down the Royal Palace. He appoints Aribert as his viceroy ("imperial vicar") in Italy and charges him to ensure that the order is complied with.
Summer – Conrad II leaves the bulk of his army at the siege of Pavia, and marches to Ravenna. The Ravennan militias close the town gates and assault the imperial train. Conrad rallies his troops and takes Ravenna, taking bloody revenge.
Autumn – Pavia falls to the imperial forces. Only the intervention of Odilo of Cluny persuades Conrad to have mercy on the city and the defeated rebels.[29]
Rainulf Drengot, head of a mercenary band of Norman knights, is approached by Duke John V of Gaeta and is persuaded to change sides. With Norman help, Duke Sergius IV recovers Naples from Capuan occupation.
^Based on dating of a felled tree using dendrochronology based on a timeline using the 993–994 carbon-14 spike. Kuitems, Margot; Wallace, Birgitta L.; Lindsay, Charles; Scifo, Andrea; Doeve, Petra; Jenkins, Kevin; Lindauer, Susanne; Erdil, Pınar; Ledger, Paul M.; Forbes, Véronique; Vermeeren, Caroline (2021-10-20). "Evidence for European presence in the Americas in ad 1021". Nature. 601 (7893): 388–391. doi:10.1038/s41586-021-03972-8. ISSN1476-4687. PMC8770119. PMID34671168. S2CID239051036. Our result of AD 1021 for the cutting year constitutes the only secure calendar date for the presence of Europeans across the Atlantic before the voyages of Columbus [in 1492]. Moreover, the fact that our results, on three different trees, converge on the same year is notable and unexpected. This coincidence strongly suggests Norse activity at L'Anse aux Meadows in AD 1021.
^Norwich, John Julius (1967). The Normans in the South. London: Longman, pp. 26–28.
^Amatus, Dunbar & Loud (2004), p. 53. The young prince was sent to the papal court for safekeeping according to Amatus.
^Walker, Williston (1921). A History of the Christian Church. Charles Scribner's Sons, p. 218.
^Ortenberg. Anglo-Saxon Church and the Papacy. English Church and the Papacy, p. 49.
^Yaacov Lev, State and Society in Fatimid Egypt (Brill, 2022) p.36
^Samuel J. Johnson, Eclipses, Past and Future, With General Hints for Observing the Heavens (James Parker and Company, 1874) p.44
^The Cartulary-Chronicle of St-Pierre of Bèze, ed. by Constance Brittain Bouchard (University of Toronto Press, 2019) p.188
^.Boyd H. Hill, Jr, Medieval Monarchy in Action: The German Empire from Henry I to Henry IV (Taylor & Francis, 2019)
^Yaacov Lev, Administration of Justice in Medieval Egypt: From the 7th to the 12th Century (Edinburgh University Press, 2020)
^Michael Brett, The Fatimid Empire (Edinburgh University Press, 2017)
^Meynier, Gilbert (2010). L'Algérie cœur du Maghreb classique. De l'ouverture islamo-arabe au repli (658-1518). Paris: La Découverte. p.50.
^Jonathan Riley-Smith (2004). The New Cambridge Medieval History. Volume IV c.1024–c.1198. p. 72. ISBN978-0-521-41411-1.
^Josis–Roland, Françoise (1970). "La basilique Notre-Dame de Walcourt" [The basilica of Our Lady in Walcourt] (PDF). Bulletin de la Commission Royale des Monuments et des Sites (in French): 65. Archived(PDF) from the original on 2022-10-09. Retrieved 20 June 2021.
^Lucy Margaret Smith (1920). The Early History of the Monastery of Cluny. Oxford University Press.