- Vratislav I Bohemia
Birth - about 877 - of Praha, Praha, Czechoslovakia - Apoganem Tornikios Bagratuni
- Thankmar von Corvey
- Constantine I, King Scotland
Death - 877 - Inverdovat, Forgan, Fifeshire, Scotland - König Karl II. "der Kahle" von Frankreich
- Charles Ii "The Bald" Holy Roman Empir
- Rhodri "Mawr" Ap Merfyn
Death - 878 - Anglesey, Wales - Aedh (Hugh), King Scotland
- Bardas Phokas
Birth - about 878 - Byzanz - Rotbold Ii Count of Arles Arles
Birth - about 878 - Of, , Arles, France - Matilda Countess Of Ringelheim
Birth - about 878 - Of Ringelheim, Goslar, Hannover, Germany - Elfleda Queen Of England
Birth - about 878 - Of, , Wessex, England - Vigdis Thorsteinsdottir
Birth - about 878 - Of, Hvammi, Dala, Iceland - Sunifred Count Of Besalu & Urgel
Birth - 878 - Of, Urgel, Lerida, Spain
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