Cognome

Prosperi

The strongest concentration of Prosperi in US arrival records points to Toscana, with 19 of 57 arrivals (33 percent) originating there.

57

US arrivals
1830 to 1912

29

Comuni of
origin

11

Regioni
represented

32

Notable on
Wikipedia

Arrivals by regioneN = 57
Abruzzo: 11 arrivalsBasilicata: 1 arrivalsCalabria: 1 arrivalsCampania: 1 arrivalsLazio: 10 arrivalsLombardia: 2 arrivalsMarche: 2 arrivalsPiemonte: 4 arrivalsSicilia: 2 arrivalsToscana: 19 arrivalsUmbria: 4 arrivals

Top regione

Toscana

19 of 57
33 percent of arrivals

Arrivals
0
< 1
1 to 2
2 to 6
6+

Cittadinanza per discendenza

Could your Prosperi line qualify for Italian citizenship?

The largest share of Prosperi arrivals came from Toscana, most often from the provincia of Lucca. If one of them is your ancestor, Italy may recognize you as a citizen under jure sanguinis (citizenship by descent).

The surname alone does not decide it. Each generation between that ancestor and you does: who naturalized, and when. Since the 2025 law, the number of generations matters too.

The checker goes back through your line one generation at a time. It is not legal advice, and it does not search for records.

Check your line
Your lineYou fill this in

Italian-born ancestor

A Prosperi from Toscana

Most often from Lucca (LU)

Each generation between

Name and dates

Did this person naturalize before their child was born?

You

A likely outcome

and the documents your line would need

Not ready to start? Get an email when the citizenship rules change.

Persone notevoli

Notable Prosperi on Wikipedia

  • Domenico Giovanni Prosperi

    1705 · Camerino

  • Anna Francesca Prosperi Buzi

    1772 · Cori

  • Maria Luisa Prosperi

    ENIT

    1779 · Fogliano

  • Gherardo Prosperi

    1812 · Ferrara

  • Felipe Prosperi

    1817 · Todi

  • Filippo Prosperi

    ENIT

    1831 · Artena

  • Liborio Prosperi

    ENIT

    1854 · Foligno

  • Carola Prosperi

    ENIT

    1883 · Torino

  • Osvaldo Prosperi

    IT

    1887 · Treia

  • Dante Prosperi

    IT

    1897 · Mantova

  • Ildebrando Prosperi

    IT

    1899 · Mantova

  • Arnaldo Prosperi

    IT

    1901 · Mantova

  • Francesco Prosperi

    1906 · Assisi

  • Antonio Prosperi

    1909 · Poggio Cinolfo

  • Giorgio Prosperi

    ENIT

    1911 · Roma

Varianti grafiche

Spelling variants worth checking

  • The spelling you know may not be the one in the records. For example, a family remembers Mansini, but the records read Mancini.
  • If your spelling does not appear, a close variant in the list below may be the same family.

Related guide

Myths About Name Changes at Ellis Island

Names were never changed at the border. The spelling here is the original Italian: Giovinelli in the records, perhaps Jovanelli in the family today.

Read guide

Di prosperi

7 US arrivals

De prosperi

1 US arrivals

Prosperini

3 US arrivals

Prosperino

1 US arrivals

Prospero

30 US arrivals

Variants are surfaced from the surname index, not from per-name research. None of these is guaranteed to be the same family as Prosperi.

Origini per comune

Arrival records by comune

Each row is a comune (municipality) where at least one passenger named Prosperi was recorded between 1830 and 1912.