Answer
Rabbinical families relocated to Sepphoris following the Bar Kokhba revolt. This relocation was part of a broader effort to reestablish Jewish life and scholarship in the Galilee region after the devastating Roman suppression of the revolt. Sepphoris, a major city in the Galilee, became a center for Jewish learning and culture, with renowned rabbis such as Rabbi Judah ha-Nasi establishing academies and teaching there.