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| Gerulf I | |
|---|---|
| Count in Frisia | |
| Reign | around 839 |
| Successor | Gerulf II |
| Died | past 865 |
| Issue |
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Gerulf, also Gerulf the Elder, (d. after 865) was the first count of Frisia by this name and an ancestor of the Counts of Holland. Initially dispossessed for opposing emperor Louis the Pious, Gerulf was given back his lands in 839.