Isaac Aboab da Fonseca

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Isaac Aboab da Fonseca
Isaac Aboab Fonseca.jpg
Portrait of Rabbi Isaac Aboab da Fonseca. This work is a translation of the Pentateuch into Spanish, with a commentary by Rabbi Fonseca. It was prepared for Jews in Dutch Brazil, who because of their Iberian heritage would be able to read Portuguese.
Simão da Fonseca

(1605-02-01)February 1, 1605
DiedApril 4, 1693(1693-04-04) (aged 88)
ChildrenJudth Aboab da Fonseca and Rabbi David Aboab da Fonseca
  • David Aboab (father)
  • Isabel da Fonseca (mother)
SynagogueKahal Zur Israel Synagogue

Isaac Aboab da Fonseca (or Isaak Aboab Foonseca) (February 1, 1605 – April 4, 1693) was a rabbi, scholar, kabbalist and writer. In 1656, he was one of several elders within the Portuguese-Israelite community in the Netherlands who excommunicated Baruch Spinoza (possibly for the statements he made concerning the nature of God).

Life and work[edit]

Isaac Aboab da Fonseca was born into the Aboab family in the Portuguese town of Castro Daire as Simão da Fonseca. His parents were Marranos, Jews who had been forcibly converted to Christianity. Although the family had ostensibly converted to Christianity, this did not put an end to local antisemitic suspicions. When Isaac was seven, the family moved to Amsterdam. From that moment on, the family "reconverted" back to Judaism, and Isaac was raised Jewish from that moment on. Together with Manasseh ben Israel, he was given lessons by the scholar Isaac Uziel.

At the age of eighteen, Isaac was appointed rabbi (chacham) for Beth Israel, one of three Sephardic communities which existed at that point in Amsterdam. In order to be distinguished from his cousin Isaac ben Mattathiah Aboab, he added his mother's name to his own.

In 1642, Aboab da Fonseca was appointed rabbi at Kahal Zur Israel Synagogue in Recife, in the then Dutch colony of Pernambuco, Brazil, a city which was occupied by the Dutch in 1624 (see Dutch Brazil, Jews in Pernambuco). Most of the European inhabitants of the town after the Dutch occupation were Sephardic Jews, originally from Portugal, but who had first emigrated to Amsterdam due to persecution by the Portuguese Inquisition. They then helped colonize this new Dutch colony at the other side of the Atlantic Ocean. By becoming the rabbi of the Portuguese Jewish community in Recife, Aboab da Fonseca was also probably one of the first appointed rabbis of the Americas, along with his rabbinic companion Moses Raphael de Aguilar. Kahal Zur Israel congregation here had a synagogue, a mikveh and a yeshiva as well. Still during Fonseca's tenure as rabbi in Pernambuco, the Portuguese re-occupied the capital of Recife in 1654, after a struggle of nine years. Fonseca then managed to return to Amsterdam after the loss of the new colony to the Portuguese. Some members of his community immigrated to North America and were among the founders of New Amsterdam.

Back in Amsterdam, Aboab da Fonseca was appointed Chief Rabbi for the Sephardic community. In 1656, he was one of several scholars who excommunicated the famous philosopher Baruch Spinoza. During the reign of Aboab da Fonseca, the community flourished; the Portuguese synagogue (the Esnoga) was inaugurated on August 2, 1675 (10 Av 5435).

Isaac Aboab da Fonseca died in Amsterdam on April 4, 1693, at the age of 88.


In 2007, the Jerusalem Institute (Machon Yerushalaim) in Israel published a book about Rabbi Fonseca's works, including the author's expositions about the community of Recife at that time. The book is called Chachamei Recife V'Amsterdam, or The Sages of Recife and Amsterdam.

See also[edit]

External links[edit]

Media related to Isaac Aboab da Fonseca at Wikimedia Commons