The seemingly incongruous fact that these supposedly Karaite princes served in the Palestinian Gaonate can be explained by the fact that only during the 10th century did Karaites claim Anan as their founder and include these Nesi'im in their pedigree, see Rustow, Marina (October 2010). "Gaon and Gaonate". Encyclopedia of Jews in the Islamic World. Leiden: Brill. Retrieved 15 May 2023.
