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Memory🌳 ItalianSchaerf 1925· Published on July 24, 2026

The Guglielmi Family

Origin of the name, history and genealogy of the Guglielmi lineage — a Jewish family name and the traces it left behind.

Jewish family of Italy. Cited by S. Schaerf, “I cognomi degli ebrei d'Italia” (Firenze, 1925).

Geographic origin: Italie

Memory register · custodian, not owner

Lineage Map

Place of Origin — RomeRome
Place of Origin Diaspora Memory (transmitted)Regions reconstructed from documented origins and diaspora.
The Great Book of this lineage

The Great Book — Guglielmi

Introduction

There are names that, by themselves, sum up a condition. Guglielmi — derived as a patronymic from the given name Guglielmo, the Italian form of William — belongs to this category of surnames known as "inverted toponymic" or "prenominal," that is, formed not from a place but from the name of an ancestor. Among the Jews of Italy, this way of establishing a line is nothing exceptional: it testifies to an ancient acculturation, where a Jewish family adopts, Latinizes, and transmits a given name of common usage in the peninsula, until it becomes, generation after generation, the mark of a lineage.

The name Guglielmi appears, with its variants Gulielmi, Guglielmo, and Guilielmi, among the Jewish surnames of Italy cataloged by the librarian and scholar Samuele Schaerf in his reference work published in Florence in 1925. This inventory, a pioneering work, makes no claim to trace illustrious dynasties: it soberly records the presence of a name in the fabric of the Jewish communities of the peninsula. It is from this slender thread — an entry in a catalog of names — that one can, with caution, unwind the probable history of an Italian Jewish family.

This Great Book can therefore make no claim to continuous genealogy nor to a gallery of documented figures. Rather, it proposes to inscribe the name Guglielmi in the grand narrative of Italian Judaism: that of one of the oldest diasporas of the West, present on Roman soil even before the destruction of the Second Temple, and which traversed twenty centuries of welcome and exile, of tolerance and persecution, of intellectual flourishing and enforced silence. It is within this collective tapestry that the memory of a lineage such as the Guglielmi finds its meaning and its dignity.

Versions (1)
  1. v1 · current · Jul 24, 2026

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This book tells the story of the Guglielmi. Your own family may also have its Great Book — search your name to discover it, or to bring it to life.

To explore more deeply the memory, family archives, and testimonies of the lineage Guglielmi, remember and share its dedicated address:

zakhor.ai/guglielmi

The address zakhor.ai/guglielmi leads directly to this page. The archives, genealogy, and accounts that the community deposits there will complement the historical portrait presented here.

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<a href="https://zakhor.ai/en/grands-livres/familles/guglielmi">The Great Book — Guglielmi — Zakhor</a>

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The Great Book — Guglielmi — Zakhor, https://zakhor.ai/en/grands-livres/familles/guglielmi

Variants of the name (3)

One name, a hundred faces.

The same surname, transcribed differently across languages, eras, and diasporas.

GulielmiGuglielmoGuilielmi

Does your family write this name differently?

In memory

The Central Database of Shoah Victims' Names at Yad Vashem records the women, men, and children murdered during the Shoah. You can search there for the people who bore the name Guglielmi.

Search “Guglielmi” on Yad Vashem

The search is performed directly in the Yad Vashem archives; Zakhor neither copies nor retains any personal data. The presence or absence of a name in the database is not exhaustive. Learn more

The days of this book

This book bears no memory day yet. The sources that document Guglielmi give years and centuries, never a day; we do not invent one.

You know a date — a remembrance, a hilloula, the anniversary of a departure? Give it its day

Bibliography

  • Samuele Schaerf, I cognomi degli ebrei d'Italia (1925)
  • Fabio Isman, 1938. L'Italia razzista. I documenti della persecuzione contro gli ebrei (2018)
  • Mario Avagliano, Marco Palmieri, Gli ebrei sotto la persecuzione in Italia. Diari e lettere 1938-1945 (2011)
  • Marie-Anne Matard-Bonucci, L'Italia fascista e la persecuzione degli ebrei (2008)
  • Enzo Collotti, Il fascismo e gli ebrei. Le leggi razziali in Italia (2003)
  • Michele Sarfatti, Gli ebrei nell'Italia fascista. Vicende, identità, persecuzione (2000)
  • Gadi Luzzatto Voghera, Il prezzo dell'eguaglianza. Il dibattito sull'emancipazione degli ebrei in Italia (1781-1848) (1998)
  • Liliana Picciotto, Il libro della memoria. Gli ebrei deportati dall'Italia (1943-1945) (1991)
  • Robert Bonfil, Gli ebrei in Italia nell'epoca del Rinascimento (1991)
  • Nicola Ferorelli, Gli ebrei nell'Italia meridionale dall'età romana al secolo XVIII (1966)
  • Attilio Milano, Storia degli ebrei in Italia (1963)
  • Roberto G. Salvadori, Gli ebrei di Firenze. Dalle origini ai giorni nostri (2000)
  • Notice CDEC — Guglielmi, Gino
  • Notice CDEC — Guglielmi, Achille

Other lineages — Italian