Cognome
De Sieno
The strongest concentration of De Sieno in US arrival records points to Lazio, with 2 of 3 arrivals (67 percent) originating there.
3
US arrivals
1830 to 1912
2
Comuni of
origin
2
Regioni
represented
0
Notable on
Wikipedia
Top regione
Lazio
2 of 3
67 percent of arrivals
Cittadinanza per discendenza
Could your De Sieno line qualify for Italian citizenship?
The largest share of De Sieno arrivals came from Lazio, most often from the provincia of Latina. 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 lineItalian-born ancestor
A De Sieno from Lazio
Most often from Latina (LT)
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.
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.
Sieno
4 US arrivals
De siena
21 US arrivals
De seno
3 US arrivals
De sino
3 US arrivals
De siano
7 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 De Sieno.
Origini per comune
Arrival records by comune
Each row is a comune (municipality) where at least one passenger named De Sieno was recorded between 1830 and 1912.
Provincia LT
Provincia PZ
| Comune | Provincia | US Arrivals |
|---|---|---|
| Castelforte | LT | 2 |
| Avigliano | PZ | 1 |