Isaac ben Samuel the Elder (c. 1115 – c. 1184), also known as the Ri ha-Zaken (Hebrew: ר"י הזקן), was a French tosafist and Biblical commentator. He flourished at Ramerupt and Dampierre, France in the twelfth century. He is the father of Elhanan ben Isaac of Dampierre.
| Rabbeinu Tam | |||||||||||||||||||||||||||||||||||||
| Isaac ben Samuel | |||||||||||||||||||||||||||||||||||||
| Isaac ben Abraham of Dampierre | Judah ben Isaac Messer Leon | Abraham ben Nathan | Samson ben Abraham of Sens | Baruch ben Isaac | |||||||||||||||||||||||||||||||||