- Basileos, Prince Of Byzantine Empire
Death - 900Birth - about 900 - Of, Constantinople, Constantinople, Turkey - Hugues Magnus, Duke France
Birth - about 900 - Of, Paris, Seine, France - Lothar, Count Of Walbeck
- NN Monomachos
- Berengar II. von Italien
- Graf Wichmann I "der Ältere" von Sachsen
- Graf Lothar II von Walbeck
- Udo I von der Wetterau
- König Olof II. Bjørnsson
- Donald Ii Dasachtach, Scotland
Death - 900 - , Forres, Morayshire, Scotland - König Erik Anundsson
- Aubri Count Of Gatinais
Birth - 900 - Of, , Gatinais, France - Torf "The Rich" Harcourt
Birth - about 900 - Of, , Normandy, France - Konstantinos Lekapenos
Birth - about 900 - Of, Constantinople, Constantinople, Turkey - Ethelwerd Elfwerd Prince England
Birth - about 900 - , , Wessex, England - Eberhard Iv, Count Nordgau
Birth - about 900 - Of, Nordgau Region, Medieval States - Kiarval Macdunghal King
Birth - about 900 - Of, , , Ireland - Merfyn Ap Rhodri
- Prince of Norway Bjorn, "The Merchant" Haraldsson
Birth - about 900 - Of, Vestvold, Norway - Eyvind "The Easterling" Bjarnasson
Death - 900 - , , , Iceland - Tornik Tornikios Bagratuni
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