Encyclopedia of Jews in the Islamic World

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Perfet, Isaac ben Sheshet
(669 words)

Isaac ben Sheshet Perfet (1326–1408), known as Ribash, was a major halakhic authority in Spain and North Africa. Until 1372 he lived in Barcelona, where his family had aristocratic roots, and was the foremost student of Nissim Gerondi (1320–1380). He also mentions as his teachers Perez ha-Kohen and the elder Ḥasday Crescas, grandfather of the well-known rabbi and philosopher of the same name, who was a lifelong friend of Perfet’s.

Although he did not hold an official rabbinic position in Barcelona, Perfet conducted a school and had communal responsibilities. His standing is…

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Samuel Morell, “Perfet, Isaac ben Sheshet”, in: Encyclopedia of Jews in the Islamic World, Executive Editor Norman A. Stillman. Consulted online on 29 November 2023 <http://dx.doi.org/10.1163/1878-9781_ejiw_COM_0017490>
First published online: 2010

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