| Mar R. Natronai ben Mar R. Nechemiah | Iraq | fl. 719 |
| R. Natronai ben R. Hilai Gaon | Iraq | fl. 853-858 |
| Mar R. Hilai ben Natronai | Iraq | fl. 898-905 |
| R. Yaakov ben Natronai Gaon | Iraq | fl. 911-923 |
| back to 6th-11th c. | ||
| R[eb] Natronai b[en] R[eb] Yitzchak | Xanten, Germany | 1096 |
| R[eb] Shmuel b[en] R[eb] Natronai | Neuss, Germany | d. 1186 |
| back to Crusades | ||