What Happened in 891 AD
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- Sep 1 Northmen defeated near Louvaine, France
- Sep 14 Stephen V's reign as Catholic Pope end with his death, succeeded a few weeks later by Pope Formosus
- Oct 6 Formosus begins his reign as Catholic Pope
- Jan 7 Abd al-Rahman III, Umayyad Emir (912-29) and 1st Caliph of Córdoba (929-961) [birthdate disputed], born in Córdoba (d. 961)
- Sep 14 Stephen V [VI], Italian Pope (885-91), dies
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List of Years
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V