1058 Explained

Year 1058 (MLVIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.

Events

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.^[1]
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).
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.
Norman conquest of southern Italy: Norman forces under Richard Drengot besiege and capture Capua. He takes the princely title from Prince Landulf VIII.
Bolesław II the Generous, eldest son of Casimir I the Restorer, succeeds his father after his death in Poznań and becomes duke of Poland.^[2]

The Almoravids conquer the Barghawata, a group of Berber tribes, who have established an independent state in modern-day Morocco.

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.
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.
November 6 - Byzantine Emperor Isaac I Komnenos deposes Michael I Cerularius, patriarch of Constantinople, and has him exiled to Prokonnessos (until 1059).
Ealdred, archbishop of York, becomes the first English bishop to make a pilgrimage to Jerusalem.

March 1 - Ermesinde, countess and regent of Barcelona
March 17 - Lulach ("the Unfortunate"), king of Scotland^[1]
March 29 - Stephen IX, pope of the Catholic Church
August 2 - Judith of Schweinfurt, duchess of Bohemia
November 28 - Casimir I the Restorer, duke of Poland (b. 1016)
Abdollah ibn Bukhtishu, Syrian physician (b. 980)
Abu Muhammad al-Yazuri, vizier of the Fatimid Caliphate
Ælfwold II, bishop of Sherborne (approximate date)
Al-Mawardi, Abbasid jurist and diplomat (b. 972)
Boite mac Cináeda (or Bodhe), Scottish prince
- Centule IV Gaston ("the Old"), viscount of Béarn Egbert of Fulda, German Benedictine abbot
Fakhruddin As'ad Gurgani, Persian poet and writer
Flaithem Mac Mael Gaimrid, Irish poet and Chief Ollam
Grigor Magistros, Armenian prince and governor
Ilduara Mendes, countess and regent of Portugal
Theophanu, abbess of Essen and Gerresheim
William VII ("the Bold"), duke of Aquitaine (b. 1023)

Book: Panton. James. Historical Dictionary of the British Monarchy. 2011. Scarecrow Press. 9780810874978. 16. en.
Web site: Bolesław II - king of Poland. Encyclopedia Britannica. 7 April 2018. en.