Sheshet Benveniste Perfet Nasi

Sheshet ben Isaac ben Joseph Benveniste (lived in the latter half of the twelfth century) was a French Jewish physician and writer. Like Isaac Benveniste, who is supposed to have been his father, he was styled "Nasi" (prince). biography continued

The custom of calling one of the sons, generally the eldest, after the paternal (sometimes the maternal) grandfather, of which only nine instances are known during the Talmudic period, became more popular, especially in European states.

Maimonides' grandfather was Joseph b. Isaac b. Joseph b. Obadiah b. Solomon b. Obadiah, and certain families seem to have confined themselves to a few chosen names. Thus, in the Kalonymus family there occurs Meshullam b. Moses b. Ithiel b. Moses b. Kalonymus b. Meshullam b. Kalonymus b. Moses b. Kalonymus b. Jekuthiel b. Moses b. Meshullam b. Ithiel b. Meshullam—only five names among fourteen persons throughout three centuries.

As a consequence certain names became characteristic of certain districts: Japheth and Caleb in Greece, and hence among the Karaites; Kalonymus in south Italy; [Sheshet and Joab in Rome.http://www.jewishencyclopedia.com/articles/11304-names-personal]