The patronym Della Rocca belongs to that vast repertoire of Jewish names of Italy whose history weaves together, as is so often the case in the peninsula, the Memory of communities, local toponymy, and the contingencies of Mediterranean migrations. Its presence in the reference corpus of Italian Jewish onomastics is attested: the name appears in the book by Samuele Schaerf, « I cognomi degli ebrei d'Italia », con un'appendice su le famiglie nobili ebree d'Italia, a work of 89 pages published in Florence in 1925. It is this inscription in a scholarly catalogue that establishes the legitimacy of a historical notice devoted to the lineage.
Understanding the name Della Rocca requires, however, that one immediately establish the methodological cautions that impose themselves upon the historian of Italian Jewish families. The first concerns the very nature of Italian Jewish onomastics. The distinction between Jewish family names and Christian family names is, to say the least, problematic: only a few patronyms can truly be considered as belonging exclusively to members of Italian Jewish communities — for example Coen (sacerdote), Levi, Toaff, or Gabbai. Della Rocca does not belong to this restricted category of exclusively Jewish names: it is a common Italian patronym, shared by countless Christian families throughout the peninsula, which a portion of Jewish families bore or adopted. The presence of a name in Schaerf's list therefore by no means implies that all its bearers were Jewish, but rather that there existed, at the time of the survey, Jewish families who carried it.
The second caution concerns the very structure of Italian Jewish onomastic formation. Geographic, patronymic, and sacerdotal lineages figure among the multiple roots of Italian Jewish family names, which reflect the Ashkenaze, Séfarade, and Italian mixture of the community. Della Rocca manifestly belongs to the first of these categories — the geographic, or toponymic, root. The present work therefore proposes to retrace, with the deference owed to documentary uncertainty, the background of a name whose apparent simplicity conceals a historical complexity.
The cornerstone of any serious study of Della Rocca remains the work of Samuele Schaerf. In 1925, the Jewish scholar Samuele Schaerf published in Florence a small book entitled « I cognomi degli ebrei d'Italia », accompanied by an appendix. This text was published by the Casa Editrice « Israel » of Florence in 1925 (5685 of the Hebrew calendar). The work, modest in volume but ambitious in scope, catalogues the surnames borne by Jewish families of the peninsula, accompanied, in its appendix, by a notice on the noble Jewish families of Italy.
The context of publication deserves to be recalled, for it bears on the significance of the list itself. The conviction that an exclusively Jewish anthroponymic heritage existed inspired the law of July 1939, which exposed Italian Jews to a contemptible pillory, creating a kind of onomastic ghetto. Schaerf's inventory, conceived in a scholarly and communal spirit, was thus tragically subverted fourteen years later by fascist legislation, which claimed to find in it a tool of racial identification. This ambivalence — a repertoire of erudition on one hand, an instrument of potential persecution on the other — forms an integral part of the history of the name.
Della Rocca also appears in modern censuses of Italian Jewish surnames that extend the work of Schaerf. The name figures among the surnames beginning with "D" in compilations of Italian Jewish onomastics, alongside related forms such as Dalla Torre, Della Riccia, Dell'Ariccia, Della Rocca, Della Seta, Della Torre, Della Volta. This series is instructive: it reveals a type of formation very widespread among the Jews of Italy, that of names constructed with the particle "Della/Dalla" followed by a geographical referent — a torre (tower), a seta, a volta, a rocca. Della Rocca belongs fully to this morphological paradigm, which illuminates its probable origin far more than any isolated family legend.
One should also note, within the same corpus, the coexistence of the forms Rimini, Rocca, Roccas, which suggests a broader onomastic family in which the root Rocca declines according to regions and migratory itineraries: simple form (Rocca), form with particle (Della Rocca), form with Sephardic ending (Roccas). The establishment of this formal kinship constitutes one of the most solid achievements of the available documentation.
The Italian word rocca designates a fortress, a citadel, a fortified rocky spur — a recurring element of the medieval landscape of the peninsula. Dozens of Italian localities bear this name or derive from it: Rocca di Papa, Roccasecca, La Rocca, and many others. The surname Della Rocca therefore means, literally, "of the fortress" or "from the Rocca," and belongs unambiguously to the category of names of geographical origin. This interpretation aligns with what is known of the general mechanism of formation of Italian Jewish names, since, as noted, geographical lineages are among the major roots of Italian Jewish family names.
This mode of geographical naming was, in Italy, a dominant feature of Jewish onomastics. A family compelled to leave a place — by expulsion, economic migration, or relocation into a ghetto — frequently carried with it the name of its place of origin, which became a surname in the eyes of the neighbors of its new settlement. Thus were born the Recanati, the Rieti, the Rimini, the Ravenna, the Reggio — so many city names that became family names, which are found, moreover, in the immediate vicinity of Della Rocca within onomastic lists: Recanati, Reggio, Rieti, Rietti, Rignano, Rimini. Della Rocca obeys the same logic, except that its reference is not a major city but a type of site — the fortress — which makes the identification of a single mother-locality impossible.
It is here that the historian must pause and acknowledge the limits of his knowledge. No authoritative source consulted allows the Jewish family Della Rocca to be connected with certainty to a specific rocca on Italian territory. The name is too widespread, and its meaning too generic, to permit a firm localization. The toponymic hypothesis is sound in principle; it remains conjectural in its application to a particular place. Any genealogy that claimed to trace all Jewish Della Rocca back to a single citadel would belong to retrospective reconstruction rather than to the archive.
The comparative examination of variants illuminates the diasporic dimension of the surname. The documented coexistence of the forms Rocca and Roccas alongside Della Rocca invites us to consider a dispersal of the root across the different branches of Mediterranean Judaism. The final -s of Roccas evokes Iberian and Sephardic onomastic usage, while the particle Della is characteristically Italian and the bare form Rocca the most neutral.
Yet Italian Jewish onomastics is precisely the site of an encounter between traditions. Italian Jewish family names represent the blending of the Ashkenazi, Sephardic, and Italian components of the community. This geographic plurality is confirmed by the very dispersal of Jews of Italian culture: Italian Jews lived not only on the peninsula, but also in the Ionian and Dodecanese islands, in Salonika in Greece, in Corfu and in Rhodes, as well as in Turkey and in Israel. A surname such as Della Rocca / Roccas could, in this context, travel from shore to shore, becoming Latinized or Sephardized according to the host communities.
Modern Sephardic reference works bear witness to this circulation. The name Della Rocca is thus inventoried among the surnames documented by ancient communal registers: certain reference works on Sephardic names — covering New Christians, conversos and crypto-Jews (Marranos), as well as Italians and Berbers, and their history in Spain, Portugal, and Italy, with more than 16,000 surnames — record it and link it to attested burial records. One register provides the dates of interments in the Bethahaim Velho, the old cemetery, dates given according to the Hebrew calendar. Here, tradition (the name transmitted from generation to generation) and the archive (the funerary register) speak to one another: this is the very intersection that this chapter endeavors to document, without thereby claiming that all branches form a single genealogically continuous lineage.
The history of Jewish bearers of the name Della Rocca is woven into the broader fabric of Italian Jewish life, marked by millennial continuities and violent ruptures. The Jewish communities of Italy are among the oldest in Western Europe, predating even the medieval diaspora, and their onomastics were sedimented over the course of this long presence. The reference entry itself recalls that this is a "Jewish family of Italy," anchoring the name to this peninsular foundation [family entry; Schaerf, I cognomi degli ebrei d'Italia].
Like most Italian Jewish families, the Della Rocca most likely experienced the ghetto, instituted in the majority of Italian states between the sixteenth and eighteenth centuries, and then the progressive emancipation of the nineteenth century, in the wake of Napoleonic reforms and Italian unification. It was during this period of emancipation that the stabilization of surnames became permanent, transforming into hereditary names those designations which, previously, could still fluctuate from one generation to the next.
The presence of the name in the appendix of Schaerf devoted to noble Jewish families of Italy has not been established by the sources consulted and must not be asserted lightly; what can be established is that Schaerf's work did indeed contain this appendix on noble Jewish families of Italy, and that the original text should be consulted directly in order to verify any claim of this kind. Caution is all the more warranted given that the boundary between Jewish and Christian families bearing the name was porous — we must recall that Della Rocca is not a specifically Jewish name.
In the twentieth century, the name shared the tragic fate of Italian Jewry under fascism. The instrumentalization of onomastics by the law of July 1939, which created a kind of onomastic ghetto, imposed upon all Jewish bearers of a listed surname the threat of identification and persecution. The history of the name Della Rocca cannot be separated from this context in which onomastics became, under the dictatorship, a matter of survival.
The contemporary interest in Italian Jewish surnames has given rise to an abundant genealogical literature, where the most rigorous scholarship sometimes stands alongside more speculative reconstructions. Della Rocca appears regularly within it, catalogued in databases and guides intended for those researching their roots. Italian Jewish family names are those borne by persons of Jewish ancestry on the territory of Italy, as well as in the other territories where Italian Jews have lived.
For anyone undertaking today the reconstruction of a Della Rocca lineage, several methodological principles are essential. First, the consultation of primary sources: communal registers, civil records from the former ghettos, funerary inscriptions in Italian Jewish cemeteries. Next, systematic cross-referencing with authoritative catalogues — Schaerf above all — to situate the name within its network of variants. Finally, a keen awareness that sharing a name never implies sharing blood: two Della Rocca families from opposite ends of the peninsula may have no common ancestor, the name deriving simply from the same generic rocca.
This final section is explicitly conjectural, as it proposes a programme of research rather than stating established facts. Yet it traces the path by which family memory — the stories passed down at home — may one day meet the archive and be confirmed, nuanced, or corrected. It is in this space, between the name bequeathed and the document recovered, that the authentic History of every lineage is played out.
The name Della Rocca reveals itself, at the conclusion of this inquiry, as an exemplary witness to Italian Jewish onomastics: rooted in the geography of the peninsula through its meaning of "fortress," attested in Samuele Schaerf's reference catalogue I cognomi degli ebrei d'Italia, integrated into a family of variants — Rocca, Roccas — which reveals its Mediterranean and diasporic dimension. Its history illustrates the major lines of force of Italian Judaism: the antiquity of presence, the toponymic formation of patronyms, the intermingling of Ashkenazi, Sephardic and Italian communities, and finally the ordeal of modern persecution, when the law of 1939 transformed onomastics into an instrument of the ghetto.
The historian's honesty demands concluding with what remains unknown. No authoritative source allows the Della Rocca lineage to be traced back to a single fortress, nor to be constituted as a continuous genealogy descending from an identified ancestor. The name is, by its very nature, shared between Jewish and Christian families, and its presence in Schaerf's list attests only that it was borne by Jews of Italy, not that it was exclusive to them. The Great Book of the Della Rocca thus remains, for the most part, an open book: an invitation to search through registers and tombstones, where transmitted Memory may at last enter into dialogue with the archive.
