Berthold II, Duke of Swabia
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Berthold II, Duke of Swabia, was an 11th-century German nobleman and prominent supporter of the Gregorian Reform who played a key role in the power struggles of the Holy Roman Empire during the Investiture Controversy.
Referenced by (1)
| Subject (surface form when different) | Predicate |
|---|---|
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Rudolf of Rheinfelden
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successor |