Fall – Shen Kuo is sent to supervise Wang Anshi's program of surveying the building of silt deposits in the Bian Canal, outside the capital city of Kaifeng. Using an original technique, Shen successfully dredges the canal and demonstrates the formidable value of the silt gathered as a fertilizer. By topic Literature Dīwān Lughāt al-Turk, an informative book written by Mahmud al-Kashgari about the Turks, is presented to the ruler of the Kara-Khanid Khanate. Births Agnes of Aquitaine, queen of Aragon and Navarre (d. 1097) Agnes of Waiblingen, daughter of Henry IV (or 1073) Welf II (or Welfhard), duke of Bavaria (d. 1120) Wulfhilde of Saxony, German noblewoman (d. 1126) Deaths February 1 – Lý Thánh Tông, Vietnamese emperor (b. 1023) February 7 – Diarmait mac Máel na mBó, king of Leinster February 22 Peter Damian, cardinal-bishop of Ostia (or 1073) Stigand, archbishop of Canterbury March 16 – Adalbert, archbishop of Hamburg March 28 – Ordulf (or Otto), duke of Saxony August 19 – Hawise, duchess of Brittany September 22 – Ouyang Xiu, Chinese historian and poet (b. 1007) October 7 – Sancho II, king of Castile and León October 15 – Æthelric, bishop of Durham November 13 – Adalbero III, German nobleman November 24 – Bagrat IV, king of Georgia (b. 1018) December 15 – Alp Arslan, sultan of the Seljuk Empire (b. 1029) Al-Qushayri, Persian Sufi scholar and theologian (or 1073) Honorius II, antipope of the Catholic Church Maredudd ab Owain ab Edwin, Welsh prince Otloh of Sankt Emmeram, German monk (approximate date) Qatran Tabrizi, Persian poet and writer (b. 1009) Romanos IV, emperor of the Byzantine Empire Serlo II of Hauteville (or Sarlo), Norman nobleman References