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How did Otto I use members of his family to govern the German duchies?

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Stone sculptures of Otto I and his wife Edith, both crowned and seated, displayed side by side in the cathedral at Magdeburg, Germany. — Otto I Otto I and his wife Edith, sculptures in the cathedral at Magdeburg, Germany.

To consolidate his rule over the German duchies, Otto I systematically replaced native, often rebellious, dynasties with members of his own family.12

Following the suppression of various revolts, Otto I redistributed the major German duchies among his relatives to ensure loyalty and centralize authority. A key example of this policy was his brother Henry, who, after initially rebelling against Otto, was forgiven and subsequently appointed as the Duke of Bavaria in 947.1

In his efforts to transform tribal duchies into royal lands, Otto I frequently sought to supplant native leaders with his own kin. When ducal offices became vacant, he often kept them under his direct control or bestowed them upon family members. For instance, after the death of Eberhard of Franconia in 939, Otto left the Franconian dukedom vacant, bringing the region under his immediate authority. Similarly, he retained control over the dukedom of his own ancestors in Saxony.21

By placing trusted relatives in these powerful positions, Otto aimed to curb the influence of independent tribal dukes and strengthen the crown's grip on the Reich.12