1027

By place

Europe

• March 26 - Pope John XIX crowns Conrad II and his wife Gisela of Swabia as Holy Roman Emperor and Empress, respectively, in Old St. Peter's Basilica in Rome. Cnut the Great, King of Denmark and England, attends the coronation, proving his position as sole ruler of the Danish North Sea Empire.
• May 14 - King Robert II of France sues for peace with his sons. Henry I is crowned co-king of France at Reims Cathedral, but has little power to rule.
• August 6 - Robert the Magnificent becomes duke of Normandy after the death of his brother Richard III.
• Duke Sergius IV of Naples donates the County of Aversa to a band of Norman mercenaries led by Rainulf Drengot, who support him in the war with Capua.
• King Sigtrygg Silkbeard of Dublin and sub-King Flannacán of Brega make a pilgrimage to Rome.
• Ealdred is appointed abbot of Tavistock Abbey in England.

  Asia

• August 16 - Bagrat IV becomes king of Georgia on the death of his father, George I. Queen Dowager Mariam becomes regent for her 9-year-old son.
• This is the first year of the first rabjyung cycle to start in the Tibetan calendar.

  By topic

Science, technology and medicine

• The Book of Healing, a comprehensive scientific and philosophical encyclopedia written by the Persian polymath Avicenna, is published.
• Song dynasty Chinese engineer Yan Su reinvents the 3rd-century south-pointing chariot, a mechanical-driven compass vehicle.

  Births

• Albert III, count of Namur
• Al-Mu'tamid ibn Abbad, Abbadid ruler of Seville
• Ernest the Brave, margrave of Austria
• Fayun Faxiu, Chinese Chan Buddhist monk
• Matilda of Franconia, German princess
• Shōshi, Japanese empress consort
• Sviatoslav II, Grand Prince of Kiev
• Ulrich I, German bishop

  Deaths

• January 3 - Fujiwara no Yukinari, Japanese calligrapher
• August 6 - Richard III, duke of Normandy
• August 16 - George I, king of Georgia
• October 16 - Fujiwara no Kenshi, Japanese empress
• Abu'l-Qasim al-Husayn ibn Ali al-Maghribi, Arab statesman
• Aurelia of Regensburg, daughter of Hugh Capet and saint
• Dayang Jingxuan, Chinese Zen Buddhist monk
• Dogra mac Dúnadach, king of Síol Anmchadha
• Gadhra Mór mac Dundach, king of Uí Maine
• Hippolytus, archbishop of Gniezno
• Walter of Speyer, German bishop and poet
• Yazid II, Persian ruler of Shirvan