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".[1]
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[2]
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).[3]
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.[4]
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.
May 4 (20 Safar 415) – The Ambassador from Khorasan to Egypt is received at Cairo by the Caliph al-Zahir.
May 13 – Fujiwara no Takako, daughter of influential Japanese statesman Fujiwara no Michinaga, is married to Minamoto no Morofusa.
June – Bedouins led by Abd Alla Ibn Idris al-Ja'fari attack the towns of Ayla and al-'Arish in southern Palestine after the Fatimids of Egypt refuse to restore al-Ja'fari as the Governor of the Wadi al-Qura.[5]
July–September
July 13 – Emperor Henry II, Holy Roman Emperor dies in his imperial palace at Göttingen in Germany. Henry leaves no heirs. He has deliberately made no provision for a successor, "leaving that regulation in the hands of God", and his death ends the Ottonian dynasty,[6] and plans are made to elect a new Emperor in September.
August 23 (17th day of 7th month of 1 Manju) – While Emperor Goichijo attends a sumo match in the Shishinden hall behind the Ichijo-in Temple, a fight breaks out between Judge Fujiwara Keisuke and Minamoto no Shigeto, leader of the Kurando Shikibu.[7]
August 27 (17 Jumada II 415) – The Cairo Canal is opened in Fatimid Egypt in a ceremony that includes the Caliph al-Zahir.[8]
August 29 (19 Jumada II 415) – In the wake of a famine striking Egypt, Yaqub ibn al-Dawwas issues an edict on the first day of the Coptic Christian new year, prohibiting the slaughter of cattle and announces that violators will forfeit their life and their property.[8]
Anushtakin al-Dizbari, the Fatimid Governor of Palestine, confronts the Bedouin Jarrahids, sending troops to collect the taxes from the iqtaʿ(fief) of the Bayt Jibrin, led by Hassan ibn Mufarrij.[9] The Jarrahids kill the collectors. Anushtakin retaliates by imprisoning two of Hassan's senior aides in Ascalon and gains permission from Caliph az-Zahir to attack Hassan while the latter is incapacitated by illness.
The Jarrahids, led by Hassan ibn Mufarrij, invade Palestine and attack the city of Tiberias, pillaging the town and killing civilians.[10]
September 1 – Basil Boioannes, Byzantine general and governor of the Catapanate of Italy, sails from Bari across the Adriatic Sea to begin an invasion of Croatia, ruled by Krešimir III. He later takes Kresimir's wife as a hostage, transporting her to Bari and then to Constantinople as a hostage.
September 8 – Conrad the Elder is crowned as King Conrad II of Germany in a ceremony at Mainz, and he and Conrad the Younger are invested as joint dukes of Franconia.
September 11 (4 Rajab 415) – Ibn Dawwas is fired from his job of administering food relief in Egypt, and replaced by Baqiyy, described as "a black slave who also managed the two shurtas" (food supplies) of Fustat and Cairo; Baqiyy is fired only two days later as the food crisis worsens, and Ibn Dawwas is rehired.[11]
September 21 – Gisela of Swabia, wife of Conrad II, is crowned as the Queen consort of Germany by Archbishop Pilgrim in a ceremony at Cologne. The royal couple then make a tour of Germany, traveling to Aachen (9/23), Nijmegen, Liege (10/2), Gendt (11/14), Dortmund and Minden.[12]
In India, Sultan Mahmud of Ghazni begins his 12th, and final, expedition of plunder, departing with a cavalry of 30,000 troops, toward Multan, followed by Ajmer and Anhilvada, arriving at Somnath on January 30.[13]
Anushtakin al-Dizbari of Palestine leads an expedition in the mountains around Nablus to apprehend the Bedouin leader Hassan ibn Mufarrij. However, the latter, with 3,000 of his horsemen, repulses Anushtakin, who retreats to Ramla, the capital of Palestine. Hassan and his troops then arrive at Ramla and burn the capital.[14]
Salih ibn Mirdas's forces, led by Ibn Tawq, advance against Aleppo and fight sporadic engagements with the Fatimid troops of governors Thu'ban and Mawsuf.[15] Salih and the Bedouins camp outside of Bab al-Jinan and demand surrender from the lead Islamic judge of the city, Ibn Abi Usama, and are refused.[15]: 62 [16]: 97
November 22 (17 Ramadan 415 AH) – The siege of Aleppo is started by Salih ibn Mirdas and an army of Bedouin warriors. After a siege of more than 50 days, and heavy casualties on both sides, Aleppo surrenders on January 18, 1025 (13 Dhu al-Qa'da 415 AH).[17][18]
November – After a 20 day of siege, Mansur I, formerly the Emir of Derbent recaptures the capital from the Emir Yazid ibn Ahmad with help from the Christian state of Sarir.[19]
December 17 – The monastery of Grottaferrata, outside of Rome, is consecrated by Pope John XIX and dedicated to the Virgin Mary.[20]
December 29 – The Fatimid caliph celebrates the Eid al-Fitr in an elaborate ceremony at the Anwar Mosque, as recounted later by the Amir al-Musabbihi.[21]
^Herbert Schutz, The Medieval Empire in Central Europe: Dynastic Continuity in the Post-Carolingian Frankish Realm, 900-1300 (Cambridge Scholars Publisher, 2010) p. 109
^"Fighting Nobles: The Tale of Genji Behind the Heian Dynasty", by Shinichi Shigeta, Kashiwa Shobo (September 2005), p.15
^"Tiberias, From Its Foundation to the End of the Early Islamic Period", by Katia Cyrtryn-Silverman, in Galilee in the Late Second Temple and Mishnaic Periods: The Archaeological Record from Cities, Towns, and Villages, ed. by David A. Fiensy and James Riley Strange, Volume 2 (Fortress Press, 2015) p.188
^Ahmad Ghabin, Ḥisba: Arts and Craft in Islam (Harrassowitz, 2009) p.65
^Herwig Wolfram, Conrad II, 990-1039: Emperor of Three Kingdoms (Pennsylvania State University Press, 2010) pp.56-59
^Henry Beveridge, A Comprehensive History of India (1871, reprinted by Anatiposi Verlag, 2023)pp.48-49
^"Palestine", in Medieval Islamic Civilization: An Encyclopedia, ed. by Josef W. Meri (Taylor & Francis, 2005) p.591
^"Grottaferrata", by Darrell D. Davisson, in Medieval Italy: An Encyclopedia (Taylor & Francis, 2004)
^"Social elites at the Fatimid court", by Paul E. Walker, in Court Cultures in the Muslim World Seventh to Nineteenth Centuries (Taylor & Francis, 2014)
^Muhammad Nazim, The Life and Times of Sultan Mahmud of Ghazna (Cambridge University Press, 2014) p.13