| R[eb] Yaakov b[en] R[eb] Yekusiel | France, and Rome, Italy | fl. 1007 |
| Yekusiel [son of the above] | France, and Rome, Italy | fl. 1007 |
| R[eb] Yekusiel b[en] R[eb] Meshulam | Mainz, Germany | 1096 |
| R[eb] Moshe haParnas b[en] R[eb] Yekusiel | Speyer, Germany | 1096 |
| R[eb] Yekusiel b[en] R[eb] Yehudah haCohen | Blois, France | d. 1171 |
| R[eb] Gershom b[en] R[eb] Yekusiel | Wissembourg, France | d. 1270 |
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