|Covid-19|January 24 – Pope Nicholas II succeeds Pope Stephen IX as the 155th Pope, installed in Rome in opposition to Antipope Benedict X.
April 13 – Pope Nicholas II, with the agreement of the Lateran Council, issues the papal bull In nomine Domini, making the College of Cardinals the sole voters in the papal conclave for the election of popes.
August – Robert Guiscard signs the Treaty of Melfi, with Pope Nicholas II.
November 22 – Isaac I Komnenos resigns as Byzantine Emperor, appointing Constantine Ducas as his successor.
Muhammad bin Dawud, known as Alp Arslan, succeeds his father Chaghri Beg, as governor of Khorasan.
Peter Krešimir IV is crowned King of Croatia and Dalmatia.
Fulcher of Chartres, chronicler of the First Crusade
King Peter Urseolo of Hungary
Michael Cerularius, Patriarch of Constantinople
Michael VI Bringas, Byzantine Emperor, reigned 1056-1057
Year 1059 (MLIX) was a common year starting on Friday (link will display the full calendar) of the Julian calendar.
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