1023

:"For the number 1023 see, 1023 (number)"

Events

Europe

* The Judge-Governor of Seville takes advantage of the disintegration of the caliphate of Córdoba and seizes power as Abbad I, thus founding the Abbadid dynasty.
* Abd ar-Rahman V is proclaimed Caliph at Córdoba.

Asia

* The Ghaznavid Empire occupies Transoxiana.

Africa

* Soon after returning from Mecca, the Tarsina king of Zanata, a mountain kingdom between Algeria and Morocco, is killed in battle.

Births

* William VII of Aquitaine (d. 1058)

Deaths

* Wulfstan II, Archbishop of York
* Oda von Haldensleben, wife of Mieszko I
* Llywelyn ap Seisyll, King of Gwynedd
* Sitt al-Mulk, regent of the Fātimid Caliphate (1021 to 1023) for ˤAlī az-Zāhir, the Seventh Caliph (1021 to 1036)