1003 in history

Born in 1003

Jun 7 Emperor Jingzong of Western Xia the first emperor of the Western Xia Empire located in northwestern China, reigning from 1038 to 1048. He was the eldest son of the Tangut ruler Li Deming
Dec 25 Pope John XVIII Pope and ruler of the Papal states from January 1004 to his abdication in June 1009. He was born Fasanius at Rapagnano, near Ascoli Piceno, the son of a Roman priest named Leo

Died in 1003

Jan 25 Lothair Margrave of the Nordmark a Saxon count and Margrave of the Northern March from about 983 until his death.
May 4 Herman II Duke of Swabia a member of the Conradine dynasty. He was duke of Swabia from 997 to his death. Between January and October 1002 Herman II attempted, unsuccessfully, to become king of Germany
May 12 Pope Sylvester II Pope from 2 April 999 to his death in 1003. Born Gerbert d'Aurillac , he was a prolific scholar and teacher. He endorsed and promoted study of Arab/Greco-Roman arithmetic, mathematics, and astronomy, reintroducing to Europe the abacus and armillary sphere, which had been lost to Europe since the end of the Greco-Roman era. He is said to be the first to introduce in Europe the decimal numeral system using the Arabic numerals after his studies at the University of al-Karaouine in Morocco. He was the first French Pope
Jul 11 Al-Mansur al-Qasim al-Iyyani an imam of the Zaidi state in Yemen who briefly reestablished a comprehensive Zaidi realm in the years 999–1002.
Aug 3 At-Ta'i the Abbasid Caliph in Baghdad from 974 to 991. Very little is known about his personal and official life. During his Caliphate, Syria was torn by contending factions — Fatimid, Turkish, and Carmathian; while the Buwayhid dynasty was split up into parties that were fighting among themselves. To top this all off, the Byzantine Emperor John Tzimisces stormed the east in a victorious campaign in 975. After holding the office for seventeen years, al-Ta'i was deposed in 991 by the Buwayhid emir Baha' al-Dawla
Dec 6 Pope John XVII Pope for about seven months from 16 May to December 1003. He was born John Sicco, the son of another John Sicco, in the region of Rome then referred to as Biveretica. He succeeded Pope Silvester II
Dec 24 William II of Weimar Count of Weimar from 963 and Duke of Thuringia from 1002.