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Britannica Sources used in this answer
Otto II
Otto I
History of Germany - The Ottonian conquest of Italy and the imperial crown
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Otto I
Which duchy did Otto I give to Henry in 947?
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Otto I
Otto I and his wife Edith, sculptures in the cathedral at Magdeburg, Germany.
(more)
In 947, Otto I gave the
duchy
of
Bavaria
to his brother, Henry.
1