Supriya Ghosh (Editor)


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Year 1091 (MXCI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.



  • King William II of England invades Normandy and gains a foothold in it.
  • Ladislaus I of Hungary occupies Slavonia.
  • King Stjepan II of Croatia, the last member of the Trpimirović dynasty, died peacefully without leaving an heir.
  • British Isles

  • October 17 – London Tornado of 1091: A T8/F4 tornado is recorded in St Mary-le-Bow of London, England; the storm destroys London Bridge.
  • Henry, the third son of William the Conqueror, is forced to surrender his property of Cotentin in Normandy after his two older brothers, William Rufus and Robert Curthose, make a peace agreement.
  • King Malcolm III of Scotland makes an unsuccessful attempt to invade English territory, but is finally forced to pay homage to King William II of England.
  • Cardiff Castle is built.
  • Mediterranean

  • April 29 – Battle of Levounion: The Pechenegs besiege Constantinople, but are defeated so decisively by Emperor Alexius I that they fade into oblivion.
  • February; With the taking of Noto, the Normans complete the 30-year-long conquest of Sicily from the Islamic rulers.
  • The Islamic Abbadid dynasty ruling in Spain falls when the Almoravids storm Seville. Confronted with this new threat, the king of Badajoz, al-Mutawakkil ibn al-Aftas, obtains the support of Castile in exchange for the Muslim positions on the Tagus river — Sintra, Santarém and Lisbon.
  • Roger Guiscard takes Malta.
  • Religion

  • Athanasius VI bar Khamoro becomes Syriac Orthodox Patriarch of Antioch.
  • Deaths

  • June 17 – Dirk V, Count of Holland
  • July 5 – Abbot William of Hirsau
  • August 25 – Sisnando Davides, military leader
  • December 19 – Adelaide of Susa, margravine of Turin
  • date unknown
  • Robert D'Oyly, first Lord of Oxford Castle
  • Helena of Hungary, Queen of Croatia
  • References

    1091 Wikipedia