There are many indicators that the name Piperno 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 Piperno is cited with respect to Jews & Crypto-Jews in at least 7 bibliographical, documentary, or electronic references:
Except for a brief introduction, the entire book is a listing of Inquisition Records in the New World. This is a source for converso names in the New World.
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
In this work Dan Rottenberg shows how to do a successful search for probing the memories of living relatives, by examining marriage licenses, gravestones, ship passenger lists, naturalization records, birth and death certificates, and other public documents, and by looking for clues in family traditions and customs. Supplementing the "how to" instructions is a guide to some 8,000 Jewish family names, giving the origins of the names, sources of information about each family, and the names of related families whose histories have been recorded. Other features included a country-by-country guide to tracing Jewish ancestors abroad, a list of Jewish family history books, and a guide to researching genealogy.
Dov Cohen has created an index of brides and grooms based on the organization of Ketubot (Jewish wedding contracts) from marriages within the Turkish community of Izmir. From this material we can identify the Jewish families who lived in Turkey since the Spanish expulsion in 1492 in two periods: the end of the Ottoman Empire and the beginning of the secular government of Turkish Republic. Events of these periods forced this community to emigrate to America.
Describing the tensions that existed between the Sephardic community of Bordeaux and the Ashkenazic Jews of France, the author also depicts their role in the relation of the Jews with Napoleon and the forming of the Grand Sanhedrin
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
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.
A common variation of Piperno is Paperna.