1058 CE
King Lulach ("the Unfortunate") of Scotland is killed in battle against his cousin and rival Malcolm III ("Canmore") who becomes king of the Scots. Empress Agnes de Poitou and King Andrew I ("the White") of Hungary meet to negotiate about the border zone in Burgenland (modern Austria). Byzantine Emperor Isaac I Komnenos deposes Michael I Cerularius, patriarch of Constantinople, and has him exiled to Prokonnessos (until 1059).
Geopolitics & Diplomacy
- The Almoravids conquer the Barghawata, a group of Berber tribes, who have established an independent state in modern-day Morocco.source
Conflict & Security
- March 17 – King Lulach ("the Unfortunate") of Scotland is killed in battle against his cousin and rival Malcolm III ("Canmore") who becomes king of the Scots.source
- Norman conquest of southern Italy: Norman forces under Richard Drengot besiege and capture Capua. He takes the princely title from Prince Landulf VIII.source
Exploration & Expansion
- September 20 – Empress Agnes de Poitou and King Andrew I ("the White") of Hungary meet to negotiate about the border zone in Burgenland (modern Austria).source
Religion & Belief
- November 6 – Byzantine Emperor Isaac I Komnenos deposes Michael I Cerularius, patriarch of Constantinople, and has him exiled to Prokonnessos (until 1059).source
- Bolesław II the Generous, eldest son of Casimir I the Restorer, succeeds his father after his death in Poznań and becomes duke of Poland.source
- Ealdred, archbishop of York, becomes the first English bishop to make a pilgrimage to Jerusalem.source
- Spring – Pope Stephen IX pronounces on the authenticity of the relics of Mary Magdalene at Vézelay Abbey in Burgundy, making it a major centre of pilgrimage.source
Culture & Society
- 4-year-old Judith of Swabia, youngest daughter of the late Henry III, Holy Roman Emperor, is engaged to Prince Solomon of Hungary at Regensburg.source
Births
- Ibn Bassam, Andalusian poet and historian (d. 1147)source
- Wynebald de Ballon, Norman nobleman (approximate date)source
- Al-Ghazali, Persian theologian and jurist (approximate date)source
- Theodora Anna Doukaina Selvo, Venetian dogaressa (d. 1083)source
- Synadene, queen consort of Hungary (approximate date)source
Deaths
- March 1 – Ermesinde, countess and regent of Barcelonasource
- March 17 – Lulach ("the Unfortunate"), king of Scotlandsource
- March 29 – Stephen IX, pope of the Catholic Churchsource
- March 29 – Stephen IX dies of a severe illness after a pontificate of 7 months at Florence. He is succeeded by Nicholas II who will be installed the following year.source
- August 2 – Judith of Schweinfurt, duchess of Bohemiasource
- November 28 – Casimir I the Restorer, duke of Poland (b. 1016)source
- Grigor Magistros, Armenian prince and governorsource
- Ælfwold II, bishop of Sherborne (approximate date)source
- Centule IV Gaston ("the Old"), viscount of Béarnsource
- Abu Muhammad al-Yazuri, vizier of the Fatimid Caliphatesource
- Al-Mawardi, Abbasid jurist and diplomat (b. 972)source
- Theophanu, abbess of Essen and Gerresheimsource
- William VII ("the Bold"), duke of Aquitaine (b. 1023)source
- Egbert of Fulda, German Benedictine abbotsource