Worms | Worms, Germany | Alzey-Worms | Worms 3D | worms | Eleazar Guzman Barron District | Burchard of Worms | The Worms of Kukumlima | The Arrogant Worms | Green Apple Worms | Eleazar Wheelock | Eleazar López Contreras | Analog Worms Attack | Alzey-Worms (district) | Worms Synagogue | Worms-Pfeddersheim | Worms: Open Warfare 2 | Worms: Clan Wars | Worms (city) | Worms Cathedral | Worms: A Space Oddity | WoRMS | Waldrada of Worms | Waiting for the Worms | Johann Eleazar Zeissig | German citizens, publicly reading ''Der Stürmer'', in Worms, Germany | Eleazar b. Simeon |
On his father's side Isaac was a grandson of R. Simhah ben Samuel of Vitry, author of the Maḥzor Vitry; on his mother's side he was a nephew of Rabbeinu Tam, of Rashbam, and of Isaac ben Meir (RiBaM), a great-grandson of Rashi, and a relative of R. Eleazar of Worms.
The following table, compiled from the accounts of Eleazar of Worms and Solomon Luria, gives the Italian and German heads of the family, which produced for nearly five centuries the most notable scholars of Germany and northern France, such as Samuel he-Hasid and his son Judah he-Hasid.