There are many indicators that the name da Fonseca may be of Jewish origin, emanating from the Jewish communities of Spain and Portugal.
When the Romans conquered the Jewish nation in 70 CE, much of the Jewish population was sent into exile throughout the Roman Empire. Many were sent to the Iberian Peninsula. The approximately 750,000 Jews living in Spain in the year 1492 were banished from the country by royal decree of Ferdinand and Isabella. The Jews of Portugal, were banished several years later. Reprieve from the banishment decrees was promised to those Jews who converted to Catholicism. Though some converted by choice, most of these New-Christian converts were called CONVERSOS or MARRANOS (a derogatory term for converts meaning pigs in Spanish), ANUSIM (meaning "coerced ones" in Hebrew) and CRYPTO-JEWS, as they secretly continued to practice the tenets of the Jewish faith.
Our research has found that the family name da Fonseca is cited with respect to Jews & Crypto-Jews in at least 10 bibliographical, documentary, or electronic references:
From the civil records of Amsterdam, The Netherlands
The Amsterdam Municipal Archives possess a complete set of registers of intended marriages from 1578 to 1811, the year when the present Civil Registry was started. Between 1598 and 1811, 15238 Jewish couples were entered in these books. Both the number of records and the volume of data that may be extracted from them are unprecedented.
A History of the Marranos, by Cecil Roth.
The expulsion of the Jews from Spain in 1492 by the infamous decree of King Ferdinand and Queen Isabella was the culmination of a series of anti-Jewish persecutions throughout the 14th and 15th centuries in which thousands of Jews were massacred. Thousands of others converted in order to escape death. After the expulsion many more joined the ranks of these "new Christians" as an alternative to exile. A large number of converts, while outwardly professing Christianity, secretly continued to practice Judaism. These Marranos, as they were popularly known, were then mercilessly persecuted by the dreaded Inquisition which through tortures of forced confessions and auto-da-fes sent thousands to the stake. Many others managed to escape to countries outside the reach of the Inquisition where they created a widespread Marrano diaspora. Thousands of Marranos have survived even into our times. This seminal work by the eminent historian traces the tribulation of these secret Judaizers as well as the fate of those who succeeded in escaping to other lands where many of them rose to prominence in various fields of endeavor.
Jews in Colonial Brazil, by Arnold Wiznitzer
Professor Wiznitzer gathered detailed information about individual Jewish settlers in colonial Brazil and about cases where they were brought before the Inquisition at Lisbon, and his study throws new light on some phases of Brazilian colonial history. Many Jews fled to Brazil and others were deported to the colony as convicted heretics after the King of Portugal attemtped to compel all of his Jewish subjects to accept Christianity in 1497.They were active in the establishment of the sugar industry and in trade, and they maintained close relations with another large group of exiles who had taken refuge in Amsterdam.Most of the "new Christians" continued to practice the old religion secretly.
Hebrews of the Portuguese Nation, by Miriam Bodian
This work explores why the Portuguese Jews of northern Europe never established a solid sense of belonging to the wider Sephardi diaspora. It explores how, historically, the Conversos lost the consciousness of being “Sephardi” in the generations after the expulsion from Spain and the mass baptism of Portugal’s Jews in 1497. To be sure, once the Portuguese ex-Conversos organized in Jewish communities, their leaders made efforts to reconnect with the wider Sephardi world, and these efforts had serious symbolic and strategic value. But the Portuguese Jews’ rootedness in the Converso experience meant that their core sense of collective self remained distinct. Contributing factors to their enduring sense of distinctness were these aspects of Converso experience: the absorption of Catholic notions of piety; the “de-rabbinization” of crypto-Jewish belief; and the difficulty for many Conversos of maintaining any stable set of traditional beliefs. The outward image their leaders sought to cultivate may have been one of Sephardi traditionalism, but, at an emotional level, members of these communities continued to regard themselves as members of the “nação”—a term that evoked the Converso past.
The Sephardim of England, by Albert M. Hyamson
A history of the Spanish & Portugese Jewish Community, 1492-1951.
Die Sefarden in Hamburg (The Sephardim in Hamburg) by Michael Studemund-Halevy.
The Sephardic community of Hamburg was founded by Portuguese conversos who had settled in the Hamburg area during the three decades prior to 1611.
Raizes Judaicas No Brasil,(Jewish Roots in Brazil) by Flavio Mendes de Carvalho.
This book contains names of New Christians or Brazilians living in Brazil condemned by the Inquisition in the 17th and 18th centuries, as taken from the archives of Torre do Tombo in Lisbon. Many times details including date of birth, occupation, name of parents, age, and location of domicile are also included. The list also includes the names of the relatives of the victims. There are several cases in which many members of the same family were tortured and sentenced so some family lines may end here.
ETSI (a Paris-based, bilingual French-English periodical) is devoted exclusively to Sephardic genealogy and is published by the Sephardi Genealogical and Historical Society (SGHS). It was founded by Dr. Philip Abensur, and his professional genealogist wife, Laurence Abensur-Hazan. ETSI's worldwide base of authors publish articles identifying a broad spectrum of archival material of importance to the Sephardic genealogist. A useful feature of ETSI is the listing, on the back cover, of all Sephardic family names, and places of origin, cited in the articles contained in each issue
The register gives us dates for the burials in the "Bethahaim Velho" or Old Cemetery. The dates are listed as per the Jewish calendar.
From the records of Bevis Marks, The Spanish and Portuguese Congregation of London
Bevis Marks is the Sephardic synagogue in London. It is over 300 years old and is the oldest still in use in Britain.The Spanish and Portuguese Jews' Congregation of London has published several volumes of its records: they can be found in libraries such as the Cambridge University Library or the London Metropolitan Archive
Around the 12th century, surnames started to become common in Iberia. In Spain, where Arab-Jewish influence was significant, these new names retained their old original structure, so that many of the Jewish surnames were of Hebrew derivation. Others were directly related to geographical locations and were acquired due to the forced wanderings caused by exile and persecution. Other family names were a result of conversion, when the family accepted the name of their Christian sponsor. In many cases, the Portuguese Jews bear surnames of pure Iberian/Christian origin. Many names have been changed in the course of migration from country to country. In yet other cases "aliases", or totally new names, were adopted due to fear of persecution by the Inquisition.
Some common variations of da Fonseca are da Fonseka, de Fonseka,
The following websites are relevant to the surname da Fonseca:
http://www.defonseka.com/ft_surname.htm
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